Simplify read-md.c and read-rtl.c using require_char_ws
read-md.c and read-rtl.c repeatedly use this pattern:
c = read_skip_spaces ();
if (c != ')')
fatal_expected_char (')', c);
Simplify them by introduce a helper function to do this.
gcc/ChangeLog:
* read-md.c (require_char_ws): New function.
(read_string): Simplify using require_char_ws.
(handle_constants): Likewise.
(handle_enum): Likewise.
(handle_file): Likewise.
* read-md.h (require_char_ws): New declaration.
* read-rtl.c (read_conditions): Simplify using require_char_ws.
(read_mapping): Likewise.
(read_rtx_code): Likewise.
(read_nested_rtx): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236101 138bc75d-0d04-0410-961f-82ee72b054a4