Widen around c-font-lock-fontify-region. This fixes bug #38049.

* lisp/progmodes/cc-mode (c-font-lock-fontify-region): Widen in this function,
to ensure that the CC Mode font locking mechanism can examine characters
outside the given region.
1 job for master in 26 minutes and 8 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #4159
test-all

00:26:08

 
Name Stage Failure
failed
test-all Test
Makefile:152: recipe for target 'cus-load.el' failed
make[2]: *** [cus-load.el] Error 255
make[2]: Leaving directory '/builds/emacs/emacs/lisp'
Makefile:411: recipe for target 'lisp' failed
make[1]: *** [lisp] Error 2
make[1]: Leaving directory '/builds/emacs/emacs'
Makefile:1117: recipe for target 'bootstrap' failed
make: *** [bootstrap] Error 2
ERROR: Job failed: exit code 1