closure_linter: temporarily add support for @suppress {suspiciousCode} to...

closure_linter: temporarily add support for @suppress {suspiciousCode} to unblock compiling settings.

R=vitalyp@chromium.org
TBR=tbreisacher@chromium.org
BUG=393873
NOTRY=true

Review URL: https://codereview.chromium.org/561873004

Cr-Commit-Position: refs/heads/master@{#294337}

third_party/closure_linter/README.chromium

@@ -15,3 +15,5 @@ Local modifications:
   Removed closure_linter/testdata/
   Added Apache License notice to closure_linter/common/tokens_test.py
   Added OWNERS file
+  Added @suppress {suspiciousCode} to closure_linter/statetracker.py while we
+  wait for the external release.

third_party/closure_linter/closure_linter/statetracker.py

@@ -133,6 +133,7 @@ class DocFlag(object):
       'missingReturn',
       'nonStandardJsDocs',
       'strictModuleDepCheck',
+      'suspiciousCode',
       'tweakValidation',
       'typeInvalidation',
       'undefinedNames',