glcpp: don't push #line directives into next line

glcpp: don't push #line directives into next line

By moving the HASH_LINE rule out of control_line: and into line:, we avoid
adding control_line's additional \n (as seen in the first hunk).

mattst88: Carl and I determined independently of Fabian that the 091
test needed to be modified identically to this, and our patch to fix the
test was more complicated.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51506
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Carl Worth <cworth@cworth.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>