gdb/

gdb/
	Code reshuffle.
	* gdb-gdb.py (StructMainTypePrettyPrinter): Change
	TYPE_SPECIFIC_CALLING_CONVENTION to TYPE_SPECIFIC_FUNC.  Move
	calling_convention under func_stuff there.
	* gdbtypes.c (make_function_type): Call INIT_FUNC_SPECIFIC.
	(init_type) <TYPE_CODE_FUNC>: Likewise.
	(recursive_dump_type): Change TYPE_SPECIFIC_CALLING_CONVENTION to
	TYPE_SPECIFIC_FUNC.  New comment for tail_call_list.
	* gdbtypes.h (enum type_specific_kind): Change
	TYPE_SPECIFIC_CALLING_CONVENTION to TYPE_SPECIFIC_FUNC.
	(struct main_type) <type_specific>: Change calling_convention to
	func_stuff.  Move calling_convention to ...
	(struct func_type): ... this new struct.
	(INIT_FUNC_SPECIFIC): New #define.
	(TYPE_CALLING_CONVENTION): Change calling_convention to func_stuff.