gdb

gdb
	PR macros/2564:
	* c-exp.y (macro_original_text, expansion_obstack,
	expression_macro_scope): New globals.
	(scan_macro_expansion): New function.
	(scanning_macro_expansion): Likewise.
	(finished_macro_expansion): Likewise.
	(scan_macro_cleanup): Likewise.
	(c_parse): Find macro scope.  Initialize obstack.
	* c-lang.h (scan_macro_expansion, scanning_macro_expansion,
	finished_macro_expansion, expression_macro_lookup_func,
	expression_macro_lookup_baton): Remove.
	* c-lang.c (scan_macro_expansion, scanning_macro_expansion,
	finished_macro_expansion, expression_macro_lookup_func,
	expression_macro_lookup_baton): Remove.
	(macro_original_text, macro_expanded_text,
	c_preprocess_and_parse): Remove.
	(c_language_defn, cplus_language_defn, asm_language_defn,
	minimal_language_defn): Use c_parse.
gdb/testsuite
	* gdb.base/macscp.exp: Print "address.addr".
	* gdb.base/macscp1.c (struct outer): New struct.
	(address): New global.