[runtime] Fix ES6 9.2.1 [[Call]] when encountering a classConstructor.

test/mjsunit/mjsunit.status

 # Copyright 2012 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 63 matching lines @@
   'big-object-literal': [PASS, NO_VARIANTS],
   'bit-not': [PASS, NO_VARIANTS],
   'json2': [PASS, NO_VARIANTS],
   'packed-elements': [PASS, NO_VARIANTS],
   'string-indexof-1': [PASS, NO_VARIANTS],
   'unbox-double-arrays': [PASS, NO_VARIANTS],
   'unicode-test': [PASS, NO_VARIANTS],
   'whitespaces': [PASS, NO_VARIANTS],
   'compiler/osr-assert': [PASS, NO_VARIANTS],
   'es6/string-fromcodepoint': [PASS, NO_VARIANTS],
+  # TODO(cbruni): enable once we fix classConstructor calls in optimized code
+  'es6/classes': [PASS, NO_VARIANTS],
   'regress/regress-2185-2': [PASS, NO_VARIANTS],
   'regress/regress-2612': [PASS, NO_VARIANTS],
 
   # Modules are busted
   'harmony/module-linking': [SKIP],
   'harmony/module-recompile': [SKIP],
   'harmony/module-resolution': [SKIP],
   'harmony/regress/regress-343928': [SKIP],
 
   # Issue 3660: Replacing activated TurboFan frames by unoptimized code does
@@ skipping 628 matching lines @@
   'd8-worker-sharedarraybuffer': [SKIP],
 }],  # 'predictable == True'
 
 ##############################################################################
 ['arch == ppc and simulator_run == True or arch == ppc64 and simulator_run == True', {
 
   # take too long with the simulator.
   'regress/regress-1132': [SKIP],
 }],  # 'arch == ppc and simulator_run == True'
 ]