Mark cctest/test-alloc/CodeRange as flaky on Windows

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 49 matching lines @@
   # running several variants. Note that this still takes ages, because there
   # are actually 13 * 38 * 5 * 128 = 316160 individual tests hidden here.
   'test-parsing/ParserSync': [PASS, NO_VARIANTS],
 }],  # ALWAYS
 
 ##############################################################################
 ['system == windows', {
 
   # BUG(2999).
   'test-cpu-profiler/CollectCpuProfile': [PASS, FAIL],
+
+  # BUG(3005).
+  'cctest/test-alloc/CodeRange': [PASS, FLAKY],
 }],  # 'system == windows'
 
 ##############################################################################
 ['arch == arm', {
 
   # We cannot assume that we can throw OutOfMemory exceptions in all situations.
   # Apparently our ARM box is in such a state. Skip the test as it also runs for
   # a long time.
   'test-api/OutOfMemory': [SKIP],
   'test-api/OutOfMemoryNested': [SKIP],
@@ skipping 58 matching lines @@
   # Profiling doesn't work on Native Client.
   'test-cpu-profiler/*': [SKIP],
 
   # Fails since 16322 (new test).
   'test-code-stubs-arm/ConvertDToI': [SKIP],
 
   # BUG(2998).
   'test-macro-assembler-arm/LoadAndStoreWithRepresentation': [SKIP],
 }],  # 'arch == nacl_ia32 or arch == nacl_x64'
 ]