A64: Skip tests failing on gc stress bots

BUG=none
TBR=ulan@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/160353002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19321 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/mjsunit.status

@@ -181,6 +181,12 @@
 
   # BUG(v8:3148): Invalid branch instruction emitted.
   'debug-references': [PASS, ['mode == debug', SKIP]],
+  'mirror-array': [PASS, ['mode == debug', SKIP]],
+
+  # BUG(v8:3156): Fails on gc stress bots.
+  'compiler/concurrent-invalidate-transition-map': [PASS, ['gc_stress == True', FAIL]],
+  # BUG(v8:3157): Fails on gc stress bots.
+  'sparse-array-reverse': [PASS, ['gc_stress == True', FAIL]],
 }],  # 'arch == a64'
 
 ['arch == a64 and mode == debug and simulator_run == True', {