Mark tests that depend on destructuring as NeedsManualRebaseline

Destructuring will be turned on soon in v8, and that will cause
these three tests to start "failing" (though they're actually passing
more, since we support new syntax). Will rebaseline them after the
change rolls successfully into Chromium.

BUG=560503
TBR=ojan@chromium.org

Review URL: https://codereview.chromium.org/1471653005 .

Cr-Commit-Position: refs/heads/master@{#361200}

third_party/WebKit/LayoutTests/TestExpectations

@@ -1304,6 +1304,10 @@ crbug.com/502927 [ XP ] virtual/syncpaint/paint/frames/frameset-with-stacking-co
 
 crbug.com/353746 virtual/android/fullscreen/video-specified-size.html [ Failure Pass ]
 
+crbug.com/560503 fast/js/mozilla/strict/12.14.1.html [ NeedsManualRebaseline ]
+crbug.com/560503 fast/js/mozilla/strict/13.1.html [ NeedsManualRebaseline ]
+crbug.com/560503 fast/js/mozilla/strict/regress-532254.html [ NeedsManualRebaseline ]
+
 crbug.com/527270 accessibility/name-calc-img.html [ Failure Pass Timeout ]
 
 # This test has different results in Debug and Release.