* cpphash.c (cpp_forall_identifiers): Add context variable

	* cpphash.c (cpp_forall_identifiers): Add context variable
	for callback routine.
	* cppmain.c (dump_macro): Update to match cpp_forall_identifiers
	change.
	(main): Call cpp_forall_identifiers with null context.
	* cpplib.h (cpp_forall_identifiers): Update prototype.

	* cppmain.c: Make `parse_in' and `print' static.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37119 138bc75d-0d04-0410-961f-82ee72b054a4