Mark mjsunit/allocation-site-info.js as NO_VARIANTS.

NOTRY=true
TBR=machenbach@chromium.org
BUG=4078
LOG=N

Review URL: https://codereview.chromium.org/1123183003

Cr-Commit-Position: refs/heads/master@{#28248}

test/mjsunit/mjsunit.status

@@ -146,6 +146,9 @@
   # TODO(titzer): too slow in --turbo mode due to O(n^2) graph verification.
   'regress/regress-1122': [PASS, NO_VARIANTS],
 
+  # issue 4078:
+  'allocation-site-info': [PASS, NO_VARIANTS],
+
   ##############################################################################
   # Too slow in debug mode with --stress-opt mode.
   'compiler/regress-stacktrace-methods': [PASS, ['mode == debug', SKIP]],