[presubmit] Ignore large data files when lint checking

This skips gay-*.cc cctest files for lint checking. The files
contain 99.9% data not structures. Alternatively, maybe the
data could be moved to non-cc resource files.

This speeds up v8_presubmit without caching locally from 39s to 23s.
This is how it's executed on the continuous CI builder.

No-Try: true
Change-Id: Ide58618a0b1ecd5900b5c9633d584c59b559df32
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2056463
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66267}

tools/v8_presubmit.py

@@ -325,7 +325,13 @@ class CppLintProcessor(CacheableSourceFileProcessor):
     return (super(CppLintProcessor, self).IgnoreDir(name)
             or (name == 'third_party'))
 
-  IGNORE_LINT = ['export-template.h', 'flag-definitions.h']
+  IGNORE_LINT = [
+    'export-template.h',
+    'flag-definitions.h',
+    'gay-fixed.cc',
+    'gay-precision.cc',
+    'gay-shortest.cc',
+  ]
 
   def IgnoreFile(self, name):
     return (super(CppLintProcessor, self).IgnoreFile(name)