ARM: Implement UnaligedLoad and UnaligedStore turbofan operators.

test/cctest/cctest.status

 # Copyright 2011 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
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@@ skipping 281 matching lines @@
   'test-serialize/StartupSerializerTwice': [SKIP],
   'test-serialize/StartupSerializerOnceRunScript': [SKIP],
   'test-serialize/StartupSerializerTwiceRunScript': [SKIP],
 
   ############################################################################
   # Slow tests.
   'test-api/Threading1': [PASS, SLOW],
   'test-api/Threading2': [PASS, SLOW],
   'test-api/Threading3': [PASS, SLOW],
   'test-api/Threading4': [PASS, SLOW],
-
-  # Implement ARM UnalignedLoad and UnalignedStore operators
-  'test-run-load-store/RunUnalignedLoadStoreUnalignedAccess': [SKIP],
 }],  # 'arch == arm'
 
 ##############################################################################
 ['arch == mipsel or arch == mips', {
   'test-cpu-profiler/CollectDeoptEvents': [PASS, FAIL],
 
   # TODO(mips-team): Improve code-size on large RegExp's.
   'test-heap/TestSizeOfRegExpCode':  [SKIP],
 
   # BUG(1075): Unresolved crashes on MIPS also.
@@ skipping 169 matching lines @@
   'test-heap/OptimizedPretenuringNestedDoubleLiterals': [FAIL],
   'test-heap/OptimizedPretenuringNestedMixedArrayLiterals': [FAIL],
   'test-heap/OptimizedPretenuringNestedObjectLiterals': [FAIL],
   'test-heap/OptimizedPretenuringObjectArrayLiterals': [FAIL],
 
   # BUG(4751). Flaky with Ignition.
   'test-cpu-profiler/JsNativeJsSample': [SKIP],
 }],  # ignition or ignition_turbofan
 
 ]