* linespec.c: #include "stack.h".

	* linespec.c: #include "stack.h".
	(decode_line_with_current_source): Moved here from symtab.c and
	renamed from decode_line_spec.  All callers updated.
	(decode_line_with_last_displayed): Moved here from breakpoint.c and
	renamed from decode_line_spec_1.  All callers updated.
	* linespec.h (decode_line_with_current_source): Move declaration here
	from symtab.h and renamed from decode_line_spec.
	(decode_line_with_last_displayed): Move declaration here from symtab.h
	and renamed from decode_line_spec_1.
	* macrocmd.c: #include "linespec.h".
	* symtab.c: Remove #include "linespec.h".