Fixes multilib handling when running the libphobos testsuite.

libphobos/ChangeLog:

2019-04-12  Iain Buclaw  <ibuclaw@gdcproject.org>

	PR d/89255
	* configure.ac (ENABLE_SHARED, ENABLE_STATIC): Remove conditionals.
	* configure: Regenerate.
	* d_rules.am (%.t.lo, %.t.o): Remove rules.
	(unittest_static_LINK, unittest_LINK, libgdruntime_t_la_LINK,
	libgphobos_t_la_LINK): Remove variables.
	* libdruntime/Makefile.am (DRUNTIME_TEST_LOBJECTS,
	DRUNTIME_TEST_OBJECTS, check_PROGRAMS, check_LTLIBRARIES,
	unittest_static_SOURCES, unittest_static_LIBTOOLFLAGS,
	unittest_static_LDFLAGS, unittest_static_LDADD,
	EXTRA_unittest_static_DEPENDENCIES, libgdruntime_t_la_SOURCES,
	libgdruntime_t_la_LIBTOOLFLAGS, libgdruntime_t_la_LDFLAGS,
	libgdruntime_t_la_LIBADD, EXTRA_libgdruntime_t_la_DEPENDENCIES,
	unittest_SOURCES, unittest_LIBTOOLFLAGS, unittest_LDFLAGS,
	unittest_LDADD): Remove variables.
	(clean-local): Remove rule.
	* libdruntime/Makefile.in: Regenerate.
	* src/Makefile.am (PHOBOS_TEST_LOBJECTS,
	PHOBOS_TEST_OBJECTS, check_PROGRAMS, check_LTLIBRARIES,
	unittest_static_SOURCES, unittest_static_LIBTOOLFLAGS,
	unittest_static_LDFLAGS, unittest_static_LDADD,
	EXTRA_unittest_static_DEPENDENCIES, libgdruntime_t_la_SOURCES,
	libgdruntime_t_la_LIBTOOLFLAGS, libgdruntime_t_la_LDFLAGS,
	libgdruntime_t_la_LIBADD, EXTRA_libgdruntime_t_la_DEPENDENCIES,
	unittest_SOURCES, unittest_LIBTOOLFLAGS, unittest_LDFLAGS,
	unittest_LDADD): Remove variables.
	(clean-local): Remove rule.
	* src/Makefile.in: Regenerate.
	* testsuite/lib/libphobos.exp (libphobos_test_name): New global.
	(libphobos_init): Set libphobos_test_name.
	(libphobos-dg-test): Override name if libphobos_test_name is set.
	(filter_libphobos_unittests): New proc.
	* testsuite/libphobos.aa/aa.exp: Don't load libphobos-dg.exp.
	* testsuite/libphobos.cycles/cycles.exp: Set libphobos_test_name.
	* testsuite/libphobos.druntime/druntime.exp: New file.
	* testsuite/libphobos.druntime_shared/druntime_shared.exp: New file.
	* testsuite/libphobos.phobos/phobos.exp: New file.
	* testsuite/libphobos.phobos_shared/phobos_shared.exp: New file.
	* testsuite/libphobos.shared/shared.exp: Use dg-runtest to run tests.
	* testsuite/libphobos.hash/hash.exp: Don't load libphobos-dg.exp
	* testsuite/libphobos.init_fini/init_fini.exp: Likewise.
	* testsuite/libphobos.thread/thread.exp: Likewise.
	* testsuite/libphobos.typeinfo/typeinfo.exp: Likewise.
	* testsuite/libphobos.unittests/unittests.exp: Remove.
	* testsuite/test_runner.d: Remove.
	* testsuite/testsuite_flags.in: Add phobos to --gdcpaths.

From-SVN: r270302