MIPS[64]: Prevent multiple instances of tests that require a lot of memory

Some tests require a lot of memory and they fail on buildbots if they run
in parallel with other tests of the same kind.
We try to limit this by disabling multiple vairants of the same tests,
assuming this would stop the failures in most of the cases.

BUG=

Review-Url: https://codereview.chromium.org/2653603002
Cr-Commit-Position: refs/heads/master@{#42741}

test/mjsunit/mjsunit.status

@@ -405,6 +405,17 @@
   'string-indexof-2': [PASS, TIMEOUT],
 }],  # 'arch == arm or arch == android_arm'
 
+##############################################################################
+['(arch == mipsel or arch == mips or arch == mips64el or arch == mips64) and simulator_run != True', {
+  # These tests fail occasionally on the buildbots because they consume
+  # a large amount of memory if executed in parallel. Therefore we
+  # run only a single instance of these tests
+  'regress/regress-crbug-514081': [PASS, NO_VARIANTS],
+  'regress/regress-599717': [PASS, NO_VARIANTS],
+  'regress/regress-599414-array-concat-fast-path': [PASS, NO_VARIANTS],
+  'array-functions-prototype-misc': [PASS, NO_VARIANTS],
+}],  # 'arch == mipsel or arch == mips or arch == mips64el or arch == mips64'
+
 ##############################################################################
 ['arch == mipsel or arch == mips', {