re PR c++/17042 (Duplicated symbol in assembly output)

re PR c++/17042 (Duplicated symbol in assembly output)

	PR c++/17042
	* decl.c (declare_global_var): Use the return value from pushdecl.

	PR c++/14667
	* parser.c (cp_parser_simple_declaration): Do not diagnose invalid
	type names if we have already found a valid type.
	(cp_parser_member_declaration): Likewise.

	PR c++/17852
	* parser.c (cp_parser_member_specification_opt): Handle
	CPP_PRAGMA.

	PR c++/17042
	* g++.dg/init/dso_handle1.C: New test.

	PR c++/17852
	* g++.dg/parse/pragma1.C: New test.

	PR c++/14667
	* g++.dg/parse/typedef6.C: New test.

From-SVN: r89118