Add missing test directories to presubmit.py.

R=machenbach@chromium.org
BUG=v8:3489
LOG=n

Review URL: https://codereview.chromium.org/479503004

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23294 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/presubmit.py

@@ -239,7 +239,9 @@ class CppLintProcessor(SourceFileProcessor):
     return ['src', 'include', 'samples',
             join('test', 'base-unittests'),
             join('test', 'cctest'),
-            join('test', 'compiler-unittests')]
+            join('test', 'compiler-unittests'),
+            join('test', 'heap-unittests'),
+            join('test', 'runtime-unittests')]
 
   def GetCpplintScript(self, prio_path):
     for path in [prio_path] + os.environ["PATH"].split(os.pathsep):