* c-common.c (SIZE_TYPE, WCHAR_TYPE): Define.
	(flag_short_double, flag_short_wchar): Define.
	(c_common_nodes_and_builtins): Create many tree nodes shared
	between C and C++ here instead of in cp/decl.c and ...
	* c-decl.c (init_decl_processing): ... here.
	(SIZE_TYPE, WCHAR_TYPE): Don't define.
	(flag_short_double, flag_short_wchar): Don't define.
	(record_builtin_type): New function.
	(build_void_list_node): New function.
	* c-common.h (flag_short_double, flag_short_wchar,
	record_builtin_type, build_void_list_node): Declare.

cp:
	* decl.c (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE): Don't define.
	(record_builtin_type): Make non-static.
	(flag_short_double): Don't declare.
	(init_decl_processing): Remove the creation of many tree nodes now
	in c_common_nodes_and_builtins.
	(build_void_list_node): New function.
	* decl2.c (flag_short_double, flag_short_wchar): Don't define.
	* cp-tree.h (flag_short_wchar): Don't declare.

From-SVN: r38695