* cp-tree.h (CLASSTYPE_INTERFACE_UNKNOWN): Fix formatting.
	Document.
	(CLASSTYPE_INTERFACE_KNOWN): Likewise.
	(SET_CLASSTYPE_INTERFACE_UNKNOWN_X): Likewise.
	(SET_CLASSTYPE_INTERFACE_UNKNOWN): Likewise.
	(SET_CLASSTYPE_INTERFACE_KNOWN): Likewise.
	* decl.c (maybe_commonize_var): Use the new name-mangling where
	appropriate.
	* decl2.c (comdat_linkage): Enhance comments.  Make all
	compiler-generated things static, if COMDAT is not available.
	(get_tinfo_decl): Do not make typeinfo objects that belong in the
	library COMDAT.
	(tinfo_base_init): Use the correct mangled name for typeinfo
	strings, and push them into the global scope.
	(typeinfo_in_lib_p): New function.
	(synthesize_tinfo_var): Use it.
	(create_real_tinfo_var): Likewise.

From-SVN: r39437