Unflake and speedup JsNative*Sample cpu profile tests

test/cctest/cctest.status

 # Copyright 2011 the V8 project authors. All rights reserved.
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 # 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 55 matching lines @@
   'test-parsing/ParserSync': [PASS, NO_VARIANTS],
 
   # This tests only the type system, so there is no point in running several
   # variants.
   'test-types/*': [PASS, NO_VARIANTS],
 
   # BUG(2999).
   'test-cpu-profiler/CollectCpuProfile': [PASS, FLAKY],
   # BUG(3287).
   'test-cpu-profiler/SampleWhenFrameIsNotSetup': [PASS, FLAKY],
+  # BUG(3055).
+  'test-cpu-profiler/JsNative1JsNative2JsSample': [PASS, FAIL],
 
   ############################################################################
   # Slow tests.
   'test-api/Threading1': [PASS, ['mode == debug', SLOW]],
   'test-api/Threading2': [PASS, ['mode == debug', SLOW]],
   'test-api/Threading3': [PASS, ['mode == debug', SLOW]],
   'test-api/Threading4': [PASS, ['mode == debug', SLOW]],
   'test-strings/StringOOM*': [PASS, ['mode == debug', SKIP]],
 }],  # ALWAYS
 
@@ skipping 55 matching lines @@
   'test-serialize/*': [SKIP],
 }],  # 'no_snap == True and system == windows'
 
 ##############################################################################
 ['system == windows', {
 
   # BUG(2999).
   'test-cpu-profiler/CollectCpuProfile': [PASS, FAIL],
   'test-cpu-profiler/JsNativeJsSample': [PASS, FLAKY],
 
-  # BUG(3055).
-  'test-cpu-profiler/JsNative1JsNative2JsSample': [PASS, ['mode == release', FAIL], ['mode == debug', FLAKY]],
-
   # BUG(3005).
   'test-alloc/CodeRange': [PASS, FAIL],
 
   # BUG(3215). Crashes on windows.
   'test-lockers/MultithreadedParallelIsolates': [SKIP],
 
   # BUG(3331). Fails on windows.
   'test-heap/NoWeakHashTableLeakWithIncrementalMarking': [SKIP],
 
 }],  # 'system == windows'
@@ skipping 154 matching lines @@
   'test-api/Float32Array' : [SKIP],
   'test-api/Float64Array' : [SKIP],
   'test-api/Regress2333' : [SKIP],
   'test-alloc/StressHandles' : [SKIP],
   'test-alloc/StressJS' : [SKIP],
   'test-accessors/HandleScopePop' : [SKIP],
   'test-accessors/Gc' : [SKIP],
 
 }],  # 'arch == nacl_ia32 or arch == nacl_x64'
 ]