[wasm] asm.js: Add asm_wasm variant to test asm.js->wasm pipeline.

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
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@@ skipping 500 matching lines @@
   'test-heap/ObjectsInOptimizedCodeAreWeak': [FAIL],
 
   # TurboFan cpu profiler result is different.
   'test-cpu-profiler/DeoptAtFirstLevelInlinedSource': [FAIL],
   'test-cpu-profiler/DeoptAtSecondLevelInlinedSource': [FAIL],
 
   # BUG(5193): Flaky.
   'test-cpu-profiler/FunctionApplySample': [PASS, ['system == windows', SKIP]],
 }],  # variant == ignition_turbofan
 
+['variant == asm_wasm', {
+  '*': [SKIP],
+}],  # variant == asm_wasm
+
 ]