tree b07b2198af18771b285a22a15476e84f5933a761
parent d333e811f9a30f74375295cf12afaf3b16a1de7a
author laurentlb <laurentlb@google.com> 1497273757 +0200
committer Yun Peng <pcloudy@google.com> 1497281997 +0200

Cleanup in ValidationEnvironment, provide static methods, reduce visibility.

Call sites were creating a ValidationEnvironment object with no other purpose
than calling validateAst(). Simplify the code so that callers don't have to
worry about it.

RELNOTES: None.
PiperOrigin-RevId: 158705853