2011-12-12  Thomas Quinot  <quinot@adacore.com>

	* exp_disp.adb: Minor reformatting.

2011-12-12  Tristan Gingold  <gingold@adacore.com>

	* gnatls.adb (Search_RTS): New procedure.
	(Scan_Ls_Arg): Move code that search the RTS.
	(Gnatls): search the RTS later.
	* prj-env.ads, prj-env.adb (Get_Runtime_Path): New function.

2011-12-12  Ed Falis  <falis@adacore.com>

	* sysdep.c: Fix treatment of VxWorks task options so that run-times
	built with __SPE__ get option VX_SPE_TASK while others get VX_FP_TASK.

2011-12-12  Bob Duff  <duff@adacore.com>

	* sem_type.adb, sem_type.ads, sem_ch4.adb, treepr.adb, treepr.ads:
	Minor cleanup and fiddling with debug printouts.

2011-12-12  Vincent Celier  <celier@adacore.com>

	* prj-nmsc.adb (Get_Directories): For a non extending project,
	always get a declared object and/or exec directory if it already
	exists, even when there are no sources, but do not create them.

2011-12-12  Bob Duff  <duff@adacore.com>

	* sem_res.adb (Resolve): Deal with the case where an abstract
	operator is called with operands of type universal_integer.

2011-12-12  Thomas Quinot  <quinot@adacore.com>

	* par_sco.adb: Minor fix to dominance marker referencing WHILE
	decision.

From-SVN: r182227

2011-12-12  Tristan Gingold  <gingold@adacore.com>

	* mlib-tgt-specific-xi.adb: (Get_Target_Prefix): Simplify code.

2011-12-12  Thomas Quinot  <quinot@adacore.com>

	* par_sco.adb: Adjust dominant marker for branches of CASE
	statements.

2011-12-12  Thomas Quinot  <quinot@adacore.com>

	* gsocket.h, s-oscons-tmplt.c: Ensure we do not include any system
	header file prior to redefining FD_SETSIZE.

2011-12-12  Ed Schonberg  <schonberg@adacore.com>

	* sem_ch13.adb (Check_Aspect_At_End_Of_Declarations): In
	a generic context the aspect expressions may not have been
	preanalyzed if there was no previous freeze point, so the
	expressions must be preanalyzed now, and there is no conformance
	to check for visibility changes.

2011-12-12  Matthew Heaney  <heaney@adacore.com>

	* a-convec.adb, a-coinve.adb, a-cobove.adb (Iterator): Use
	subtype Index_Type'Base for Index component (Finalize): Remove
	unnecessary access check (First, Last): Cursor return value
	depends on iterator index value (Iterate): Use start position as
	iterator index value (Next, Previous): Forward to corresponding
	cursor-based operation.
	* a-cborma.adb (Iterate): Properly initialize iterator object (with 0
	as node index).

From-SVN: r182226

re PR libgcj/50053 (jc1 doesn't emit static initializer or initializer code for super class without -findirect-dispatch.)

        PR libgcj/50053
        * java/lang/natClass.cc (java::lang::Class::newInstance): Special case
        member-call for 32-bit IA native Window target.

From-SVN: r182225

2011-12-12  Robert Dewar  <dewar@adacore.com>

	* par_sco.adb, scos.ads, put_scos.adb, get_scos.adb: Minor reformatting.

2011-12-12  Steve Baird  <baird@adacore.com>

	* sem_ch3.adb (Check_Completion): Improve a comment.

2011-12-12  Tristan Gingold  <gingold@adacore.com>

	* cstand.adb: Minor comment fix.

From-SVN: r182224

2011-12-12  Richard Guenther  <rguenther@suse.de>

	PR lto/51262
	* tree.c (cp_free_lang_data): No longer clear anonymous names.

	* g++.dg/opt/pr51262.C: New testcase.

From-SVN: r182221

gcc:

	* config/darwin-sections.def (zobj_const_data_section): Fix over-
	length section name.

From-SVN: r182220

From-SVN: r182219

        * config/rs6000/rs6000.c (rs6000_expand_interleave): Use
        BYTES_BIG_ENDIAN, not TARGET_BIG_ENDIAN.

From-SVN: r182218

From-SVN: r182217

	PR tree-optimization/51485
	* tree-vect-data-refs.c (vect_analyze_data_refs): Give up on
	DRs in call stmts.

	* g++.dg/vect/pr51485.cc: New test.

From-SVN: r182212

2011-12-11  Tobias Burnus  <burnus@net-b.de>

        PR fortran/50923
        * trans-decl.c (generate_local_decl): Set TREE_NO_WARNING only
        if the front end has printed a warning.
        (gfc_generate_function_code): Fix unset-result warning.

2011-12-11  Tobias Burnus  <burnus@net-b.de>

        PR fortran/50923
        * gfortran.dg/warn_function_without_result_2.f90: New.

From-SVN: r182211

2011-12-11  Paul Thomas  <pault@gcc.gnu.org>
	Tobias Burnus  <burnus@gcc.gnu.org>

	PR fortran/41539
	PR fortran/43214
	PR fortran/43969
	PR fortran/44568
	PR fortran/46356
	PR fortran/46990
	PR fortran/49074
	* interface.c(symbol_rank): Return the rank of the _data
	component of class objects.
	(compare_parameter): Also compare the derived type of the class
	_data component for type mismatch.  Similarly, return 1 if the
	formal and _data ranks match.
	(compare_actual_formal): Do not compare storage sizes for class
	expressions. It is an error if an actual class array, passed to
	a formal class array is not full.
	* trans-expr.c (gfc_class_data_get, gfc_class_vptr_get,
	gfc_vtable_field_get, gfc_vtable_hash_get, gfc_vtable_size_get,
	gfc_vtable_extends_get, gfc_vtable_def_init_get,
	gfc_vtable_copy_get): New functions for class API.
	(gfc_conv_derived_to_class): For an array reference in an
	elemental procedure call retain the ss to provide the
	scalarized array reference. Moved in file.
	(gfc_conv_class_to_class): New function.
        (gfc_conv_subref_array_arg): Use the type of the
	class _data component as a basetype.
	(gfc_conv_procedure_call): Ensure that class array expressions
	have both the _data reference and an array reference. Use 
	gfc_conv_class_to_class to handle class arrays for elemental
	functions in scalarized loops, class array elements and full
	class arrays. Use a call to gfc_conv_subref_array_arg in order
	that the copy-in/copy-out for passing class arrays to derived
	type arrays occurs correctly.
	(gfc_conv_expr): If it is missing, add the _data component
	between a class object or component and an array reference.
	(gfc_trans_class_array_init_assign): New function.
	(gfc_trans_class_init_assign): Call it for array expressions.
	* trans-array.c (gfc_add_loop_ss_code): Do not use a temp for
	class scalars since their size will depend on the dynamic type.
	(build_class_array_ref): New function.
	(gfc_conv_scalarized_array_ref): Call build_class_array_ref.
	(gfc_array_init_size): Add extra argument, expr3, that represents
	the SOURCE argument. If present,use this for the element size.
	(gfc_array_allocate): Also add argument expr3 and use it when
	calling gfc_array_init_size.
	(structure_alloc_comps): Enable class arrays.
	* class.c (gfc_add_component_ref): Carry over the derived type
	of the _data component.
	(gfc_add_class_array_ref): New function.
	(class_array_ref_detected): New static function.
	(gfc_is_class_array_ref): New function that calls previous.
	(gfc_is_class_scalar_expr): New function.
	(gfc_build_class_symbol): Throw not implemented error for
	assumed size class arrays.  Remove error that prevents
	CLASS arrays.
	(gfc_build_class_symbol): Prevent pointer/allocatable conflict.
	Also unset codimension.
	(gfc_find_derived_vtab): Make 'copy' elemental and set the
	intent of the arguments accordingly.: 
	* trans-array.h : Update prototype for gfc_array_allocate.
	* array.c (gfc_array_dimen_size): Return failure if class expr.
	(gfc_array_size): Likewise.
	* gfortran.h : New prototypes for gfc_add_class_array_ref,
	gfc_is_class_array_ref and gfc_is_class_scalar_expr.
	* trans-stmt.c (trans_associate_var): Exclude class targets
	from test. Move the allocation of the _vptr to an earlier time
	for class objects.
	(trans_associate_var): Assign the descriptor directly for class
	arrays.
	(gfc_trans_allocate): Add expr3 to gfc_array_allocate arguments.
	Convert array element references into sections. Do not invoke
	gfc_conv_procedure_call, use gfc_trans_call instead.
	* expr.c (gfc_get_corank): Fix for BT_CLASS.
	(gfc_is_simply_contiguous): Exclude class from test.
	* trans.c (gfc_build_array_ref): Include class array refs.
	* trans.h : Include prototypes for class API functions that are
	new in trans-expr. Define GFC_DECL_CLASS(node).
	* resolve.c (check_typebound_baseobject ): Remove error for
	non-scalar base object.
	(resolve_allocate_expr): Ensure that class _data component is
	present. If array, call gfc_expr_to_intialize.
	(resolve_select): Remove scalar error for SELECT statement as a
	temporary measure.
	(resolve_assoc_var): Update 'target' (aka 'selector') as
	needed. Ensure that the target expression has the right rank.
	(resolve_select_type): Ensure that target expressions have a
	valid locus.
	(resolve_allocate_expr, resolve_fl_derived0): Fix for BT_CLASS.
	* trans-decl.c (gfc_get_symbol_decl): Set GFC_DECL_CLASS, where
	appropriate.
	(gfc_trans_deferred_vars): Get class arrays right.
	* match.c(select_type_set_tmp): Add array spec to temporary.
	(gfc_match_select_type): Allow class arrays.
	* check.c (array_check): Ensure that class arrays have refs.
	(dim_corank_check, dim_rank_check): Retrun success if class.
	* primary.c (gfc_match_varspec): Fix for class arrays and
	co-arrays. Make sure that class _data is present.
	(gfc_match_rvalue): Handle class arrays.
	*trans-intrinsic.c (gfc_conv_intrinsic_size): Add class array
	reference.
	(gfc_conv_allocated): Add _data component to class expressions.
	(gfc_add_intrinsic_ss_code): ditto.
	* simplify.c (simplify_cobound): Fix for BT_CLASS.
	(simplify_bound): Return NULL for class arrays.
	(simplify_cobound): Obtain correct array_spec. Use cotype as
	appropriate. Use arrayspec for bounds.

2011-12-11  Paul Thomas  <pault@gcc.gnu.org>
	Tobias Burnus  <burnus@gcc.gnu.org>

	PR fortran/41539
	PR fortran/43214
	PR fortran/43969
	PR fortran/44568
	PR fortran/46356
	PR fortran/46990
	PR fortran/49074
	* gfortran.dg/class_array_1.f03: New.
	* gfortran.dg/class_array_2.f03: New.
	* gfortran.dg/class_array_3.f03: New.
	* gfortran.dg/class_array_4.f03: New.
	* gfortran.dg/class_array_5.f03: New.
	* gfortran.dg/class_array_6.f03: New.
	* gfortran.dg/class_array_7.f03: New.
	* gfortran.dg/class_array_8.f03: New.
	* gfortran.dg/coarray_poly_1.f90: New.
	* gfortran.dg/coarray_poly_2.f90: New.
	* gfortran.dg/coarray/poly_run_1.f90: New.
	* gfortran.dg/coarray/poly_run_2.f90: New.
	* gfortran.dg/class_to_type_1.f03: New.
	* gfortran.dg/type_to_class_1.f03: New.
	* gfortran.dg/typebound_assignment_3.f03: Remove the error.
	* gfortran.dg/auto_dealloc_2.f90: Occurences of __builtin_free
	now 2.
	* gfortran.dg/class_19.f03: Occurences of __builtin_free now 8.


Co-Authored-By: Tobias Burnus <burnus@gcc.gnu.org>

From-SVN: r182210

2011-12-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/50690
	* frontend-passes.c (in_omp_workshare):  New variable.
	(cfe_expr_0):  Don't eliminiate common function if it would put
	the variable immediately into a WORKSHARE construct.
	(optimize_namespace):  Set in_omp_workshare.
	(gfc_code_walker):  Keep track of OMP PARALLEL and OMP WORKSHARE
	constructs.

2011-12-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/50690
	* gfortran.dg/gomp/workshare2.f90:  New test.
	* gfortran.dg/gomp/workshare3.f90:  New test.

From-SVN: r182208

	* doc/xml/manual/abi.xml: Replace gcc-x.y.z with GCC x.y.z or x.y,
	remove excessive duplication of version information.
	* doc/html/*: Regenerate.

From-SVN: r182206

        * trans-mem.c (ipa_tm_transform_calls_redirect): Do not remove
        edge.

From-SVN: r182205

From-SVN: r182204

utils2.c (gnat_build_constructor): Test the TREE_STATIC flag of elements to compute that of the constructor.

	* gcc-interface/utils2.c (gnat_build_constructor): Test the TREE_STATIC
	flag of elements to compute that of the constructor.

From-SVN: r182203

decl.c (gnat_to_gnu_param): Set the restrict qualifier on references built for parameters which aren't...

	* gcc-interface/decl.c (gnat_to_gnu_param): Set the restrict qualifier
	on references built for parameters which aren't specifically by-ref.

From-SVN: r182202

	* gcc-interface/decl.c (gnat_to_gnu_entity) <object>: If there is an
	alignment set on a renaming, assert that the renamed object is aligned
	enough as to make it possible to honor it.

From-SVN: r182201

	* Tweak ChangeLog.

From-SVN: r182200

From-SVN: r182199

From-SVN: r182198

2011-12-10  Tobias Burnus  <burnus@net-b.de>

        * trans-decl.c (add_argument_checking): Fix syntax.

From-SVN: r182194

        * config/rs6000/altivec.md (altivec_vmrghb): Rewrite pattern as
        vec_select + vec_concat.
        (altivec_vmrghh, altivec_vmrghw, altivec_vmrghsf, altivec_vmrglb,
        altivec_vmrglh, altivec_vmrglw, altivec_vmrglsf): Likewise.
        (vec_perm_constv16qi): New.
        (vec_extract_evenv4si, vec_extract_evenv4sf, vpkuhum_nomode,
        vpkuwum_nomode, vec_extract_oddv8hi, vec_extract_oddv16qi,
        vec_interleave_high<VI>, vec_interleave_low<VI>): Remove.
        * config/rs6000/paired.md (paired_merge00): Rewrite pattern as
        vec_select + vec_concat.
        (paired_merge10, paired_merge01, paired_merge11): Likewise.
        (vec_perm_constv2sf): New.
        (vec_interleave_highv2sf, vec_interleave_lowv2sf,
        vec_extract_evenv2sf, vec_extract_oddv2sf): Remove.
        * config/rs6000/spe.md (spe_evmergehi): Rewrite pattern as
        vec_select + vec_concat.
        (spe_evmergehilo, spe_evmergelo, spe_evmergelohi): New.
        (vec_perm_constv2si): New.
        * config/rs6000/vector.md (vec_interleave_highv4sf,
        vec_interleave_lowv4sf, vec_interleave_high<VEC_64>,
        vec_interleave_low<VEC_64>): Remove.
        * config/rs6000/vsx.md (VS_double): New mode attribute.
        (UNSPEC_VSX_XXPERMDI): Remove.
        (vsx_xxpermdi_<VSX_L>_1): Rewrite pattern as vec_select + vec_concat.
        (vsx_xxmrghw_<VSX_W>, vsx_xxmrglw_<VSX_W>): Likewise.
        (vsx_xxpermdi_<VSX_L>): Change to expander.
        (vec_perm_const<VSX_D>): New.
        (vsx_mergel_<VSX_D>, vsx_mergeh_<VSX_D>): New.
        * config/rs6000/predicates.md (const_0_to_1_operand): New.
        (const_2_to_3_operand): New.
        * config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): New.
        (altivec_expand_vec_perm_const): New.
        (rs6000_expand_vec_perm_const_1, rs6000_expand_vec_perm_const): New.
        (rs6000_vectorize_vec_perm_const_ok): New.
        (rs6000_do_expand_vec_perm): New.
        (rs6000_expand_extract_even, rs6000_expand_interleave): New.
        * config/rs6000/rs6000-builtin.def (VEC_MERGE*): Update rtx codes.
        * config/rs6000/rs6000-modes.def: Add double-wide vector modes.
        * config/rs6000/rs6000-protos.h: Update.

From-SVN: r182193

        * expr.c (expand_expr_real_2) [VEC_PERM_EXPR]: Avoid passing a
        CONST_INT to expand_vec_perm as the selector.
        * optabs.c (expand_vec_perm): Assert the selector is of a proper mode.

From-SVN: r182192

        * genmodes.c (struct mode_data): Remove wider_2x member.
        (blank_mode): Adjust initializer.
        (calc_wider_mode): Use XALLOCAVEC.
        (emit_move_wider): Select double-width same-element vectors for
        2xwider vectors.
        * machmode.h (GET_MODE_2XWIDER_MODE): Update documentation.
        * config/i386/i386.c (doublesize_vector_mode): Remove.
        (expand_vselect_vconcat): Use GET_MODE_2XWIDER_MODE instead.

From-SVN: r182191

2011-12-10  Tobias Burnus  <burnus@net-b.de>
            Kai Tietz  <ktietz@redhat.com>

        * trans-decl.c (add_argument_checking): Check ts.deferred earlier.
        * trans-intrinsic.c (gfc_conv_intrinsic_repeat): Use %ld with long.


Co-Authored-By: Kai Tietz <ktietz@redhat.com>

From-SVN: r182190

2011-12-10  Benjamin Kosnik  <bkoz@redhat.com>

	* doc/doxygen/user.cfg.in: Add macros, directories.
	* include/bits/locale_classes.h: Remove doxygen warnings, fix markup.
	* include/bits/locale_classes.tcc: Same.
	* include/bits/shared_ptr.h: Same.
	* include/bits/stl_algo.h: Same.
	* include/bits/stl_list.h: Same.
	* include/bits/stl_numeric.h: Same.
	* include/debug/safe_base.h: Same.
	* include/parallel/equally_split.h: Same.
	* include/std/bitset: Same.
	* include/std/complex: Same.
	* include/std/fstream: Same.
	* include/std/istream: Same.
	* include/std/ostream: Same.
	* include/tr2/dynamic_bitset: Same.
	* scripts/run_doxygen: Remove munging for names that no longer exist.

	* testsuite/23_containers/list/requirements/dr438/assign_neg.cc:
	Adjust line numbers.
	* testsuite/23_containers/list/requirements/dr438/
	constructor_1_neg.cc: Same.
	* testsuite/23_containers/list/requirements/dr438/
	constructor_2_neg.cc: Same.
	* testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Same.

From-SVN: r182189

2011-12-12  François Dumont <fdumont@gcc.gnu.org>

	* include/profile/unordered_set: Minor formatting changes.
	(unordered_set<>::_M_profile_destruct,
	unordered_multiset<>::_M_profile_destruct): Fix implementation to not
	rely on normal implementation details anymore.
	(unordered_set<>::_M_profile_resize,
	unordered_multiset<>::_M_profile_resize): Implement consistently
	accross all unordered containers.
	(unordered_set<>::emplace, unordered_set<>::emplace_hint,
	unordered_multiset<>::emplace, unordered_multset<>::emplace_hint): Add
	to signal rehash to profiling system.
	* include/profile/unordered_map: Likewise for unordered_map<> and
	unordered_multimap<>.

From-SVN: r182188

gcc:
        * config/epiphany/epiphany-protos.h (epiphany_start_function): Declare.
        * config/epiphany/epiphany.c (epiphany_handle_interrupt_attribute):
        Split "timer" value into "timer0" and "timer1".
        Handle page_miss, message and wand.  Don't handle static_flag.
        Adjust warning text.
        (epiphany_start_function): New function.
        (epiphany_compute_function_type): Split "timer" value into "timer0"
        and "timer1".  Handle page_miss, message and wand.
        Don't handle static_flag.
        (epiphany_expand_epilogue): Don't use frame_insn for status / iret
        restore.
        * config/epiphany/epiphany.h: ASM_DECLARE_FUNCTION_NAME: Define.
        (enum epiphany_function_type):
        Split EPIPHANY_FUNCTION_TIMER value into EPIPHANY_FUNCTION_TIMER0
        and EPIPHANY_FUNCTION_TIMER1.
        Remove EPIPHANY_FUNCTION_ILINK1 and EPIPHANY_FUNCTION_ILINK2 values.
        Add EPIPHANY_FUNCTION_PAGE_MISS and EPIPHANY_FUNCTION_MESSAGE values.
        Rename EPIPHANY_FUNCTION_STATIC_FLAG to EPIPHANY_FUNCTION_WAND.
gcc/testsuite:
        * gcc.target/epiphany/interrupt.c: Add dg-options "-g".
        Add a scan-assembler-time clause to test for the interupt vector jump.
        (f): Rename to ...
        (dma0_handler): ... this.

From-SVN: r182187

        * config/epiphany/epiphany.h (EPIPHANY_RETURN_REGNO): New macro,
        broken out of ..
        (INCOMING_RETURN_ADDR_RTX) .. this.  Use EPIPHANY_RETURN_REGNO.
        (DWARF_FRAME_RETURN_COLUMN): New macro.

From-SVN: r182186

        * config/epiphany/epiphany.h (USE_LOAD_POST_INCREMENT): Define.
        (USE_LOAD_POST_DECREMENT, USE_STORE_POST_INCREMENT): Likewise.
        (USE_STORE_POST_DECREMENT): Likewise.

From-SVN: r182185

	PR gcov-profile/51449
	* coverage.c (coverage_end_function): Always process the coverage
	variables.

	testsuite/
	* g++.dg/gcov/gcov-14.C: New.

From-SVN: r182184

From-SVN: r182183

tree.c (build_common_builtin_nodes): Do not use TM_PURE attribute unless language has support for TM.

        PR/51291
        * tree.c (build_common_builtin_nodes): Do not use TM_PURE
        attribute unless language has support for TM.
        * config/i386/i386.c (ix86_init_tm_builtins): Exit gracefully in
        the absence of TM builtins.

From-SVN: r182179

gimple-fold.c (gimple_fold_stmt_to_constant_1): Also check the TYPE_MODE to recognize useless pointer conversions.

	* gimple-fold.c (gimple_fold_stmt_to_constant_1) <GIMPLE_UNARY_RHS>:
	Also check the TYPE_MODE to recognize useless pointer conversions.

From-SVN: r182178

	PR tree-optimization/51117
	* tree-eh.c (optimize_clobbers): Don't remove just one
	clobber, but all consecutive clobbers before RESX.
	Use gimple_clobber_p predicate.

From-SVN: r182177

	PR c++/51151
	* call.c (perform_implicit_conversion_flags): Remove earlier kludge.
	* parser.c (cp_parser_omp_for_loop): Use cp_parser_omp_for_incr
	in templates even if decl isn't type-dependent.

From-SVN: r182175

2011-12-09  François Dumont <fdumont@gcc.gnu.org>

	* include/bits/hashtable.h (_Hashtable<>::emplace,
	_Hashtable<>::emplace_hint): Add.
	* include/debug/unordered_set (unordered_set<>::emplace,
	unordered_set<>::emplace_hint, unordered_multiset<>::emplace,
	unordered_multiset<>::emplace_hint): Add.
	* include/profile/unordered_set: Likewise.
	* include/debug/unordered_map (unordered_map<>::emplace,
	unordered_map<>::emplace_hint, unordered_multimap<>::emplace,
	unordered_multimap<>::emplace_hint): Add.
	* include/profile/unordered_map: Likewise.
	* testsuite/23_containers/unordered_map/modifiers/emplace.cc: New.
	* testsuite/23_containers/unordered_multimap/modifiers/emplace.cc:
	New.
	* testsuite/23_containers/unordered_set/modifiers/emplace.cc: New.
	* testsuite/23_containers/unordered_multiset/modifiers/emplace.cc:
	New.
	* testsuite/util/testsuite_container_traits.h
	(traits_base::has_emplace): Add and defined as std::true_type for
	unordered containers.
	* testsuite/util/exception/safety.h (emplace, emplace_hint): Add and
	use them in basic_safety exception test case.
	* doc/xml/manual/status_cxx2011.xml: Update unordered containers
	status.

From-SVN: r182174

gcc/cp/

	PR c++/51289
	* cp-tree.h (TYPE_TEMPLATE_INFO): Rewrite this accessor macro to
	better support aliased types.
	(TYPE_ALIAS_P): Don't crash on TYPE_NAME nodes that are not
	TYPE_DECL.
	* pt.c (find_parameter_packs_r): Handle types aliases.
	(push_template_decl_real): Check for bare parameter packs in the
	underlying type of an alias template.

gcc/PR51289/gcc/testsuite/

	PR c++/51289
	* g++.dg/cpp0x/alias-decl-17.C: New test.

From-SVN: r182170