psymtab cleanup patch 1/3

psymtab cleanup patch 1/3

This is the first of a set of three patches to cleanup psymtab.c a bit.

Basically, these two functions do not belong in psymtab.c:
expand_partial_symbol_names, map_partial_symbol_filenames,
and "partial" does not belong in the function name.

This first patch moves them to a better location.
The second patch adds some typedefs for function parameters to
quick_symbol_functions.expand_symtabs_matching.
The third patch removes "partial" from the function names
and uses them in more places.

	* psymtab.c (expand_partial_symbol_names): Delete, moved to symfile.c.
	(map_partial_symbol_filenames): Ditto.
	* psymtab.h (expand_partial_symbol_names): Delete, moved to symfile.h.
	(map_partial_symbol_filenames): Ditto.
	* symfile.c (expand_partial_symbol_names): Moved here from psymtab.c.
	(map_partial_symbol_filenames): Ditto.
	* symfile.h (expand_partial_symbol_names): Moved here from psymtab.h.
	(map_partial_symbol_filenames): Ditto.
	* symtab.c: Delete #include "psymtab.h".