[Sheriff] Mark flaky test.

BUG=v8:2921
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/54423002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/mjsunit.status

@@ -33,6 +33,13 @@
   # TODO(mvstanton) Re-enable when the performance is bearable again.
   'regress/regress-2185-2': [SKIP],
 
+  ##############################################################################
+  # Flaky tests.
+  # BUG(v8:2921): Flaky on ia32 nosnap, arm and nacl.
+  'debug-step-4-in-frame': [PASS, [('system == linux and arch == ia32 or '
+                                    'arch == arm or arch == nacl_ia32 or '
+                                    'arch == nacl_x64'), FLAKY]],
+
   ##############################################################################
   # Fails.
   'regress/regress-1119': [FAIL],

tools/testrunner/local/statusfile.py

@@ -53,7 +53,8 @@ DEFS = {FAIL_OK: [FAIL, OKAY],
 # Support arches, modes to be written as keywords instead of strings.
 VARIABLES = {ALWAYS: True}
 for var in ["debug", "release", "android_arm", "android_ia32", "arm", "ia32",
-            "mipsel", "x64", "nacl_ia32", "nacl_x64", "macos", "windows"]:
+            "mipsel", "x64", "nacl_ia32", "nacl_x64", "macos", "windows",
+            "linux"]:
   VARIABLES[var] = var