re PR c++/19787 (Internal compiler error with ambiguous conversion functions)

re PR c++/19787 (Internal compiler error with ambiguous conversion functions)

	PR c++/19787
	* call.c (initialize_reference): Robustify.

	PR ++/19732
	* decl.c (grokdeclarator): Check for invalid use of destructor
	names.

	PR c++/19762
	* parser.c (cp_parser_unqualified_id): Avoid creating destructor
	names with invalid types.

	PR c++/19826
	* parser.c (cp_parser_direct_declarator): Allow type-dependent
	expressions as array bounds.

	PR c++/19739
	* parser.c (cp_parser_attributes_list): Allow empty lists.

	PR c++/19787
	* g++.dg/conversion/ambig1.C: New test.

	PR c++/19739
	* g++.dg/ext/attrib19.C: New test.

	PR c++/19732
	* g++.dg/parse/dtor5.C: New test.

	PR c++/19762
	* g++.dg/template/dtor3.C: New test.

	PR c++/19826
	* g++.dg/template/static11.C: New test.
	* g++.dg/template/crash2.C: Remove dg-error marker.

From-SVN: r94788