* pt.c (check_template_shadow): New fn.
* decl2.c (grokfield): Use it.
* decl.c (pushdecl): Likewise.
(pushdecl_class_level): Likewise.
(start_method): Likewise.
(xref_tag): Don't try to use 't' if we're defining.
Fixes Sec14/7/C14387.cm.
* call.c (check_dtor_name): Just return an error_mark_node.
* pt.c (lookup_template_class): Complain about using non-template here.
* parse.y (apparent_template_type): Not here.
Fixes Sec14/C14339.cm.
* pt.c (check_explicit_specialization): Complain about specialization
with C linkage.
Fixes Sec14/C14340.cm.
* lang-options.h: Add -f{no-,}implicit-inline-templates.
* pt.c (convert_nontype_argument): Don't assume that any integer
argument is intended to be a constant-expression.
Fixes Sec14/7/P14245.C.
From-SVN: r24086
