[turbofan] Fix throwing conversion inserted by JSTypedLowering.

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 44 matching lines @@
   'setters-on-elements': [PASS, FAIL],
 
   ##############################################################################
   # TurboFan compiler failures.
 
   # TODO(mstarzinger): An arguments object materialized in the prologue can't
   # be accessed indirectly. Either we drop that requirement or wait for support
   # from the deoptimizer to do that.
   'arguments-indirect': [PASS, NO_VARIANTS],
 
-  # TODO(mstarzinger): The implicit JSToNumber and JSToString nodes inserted by
-  # JSTypedLowering are not properly connected to a surrounding exceptional
-  # continuation yet, hence exception are thrown out of the function body.
-  'regress/regress-1327557': [PASS, NO_VARIANTS],
-
   # TODO(verwaest): Some tests are over-restrictive about object layout.
   'array-constructor-feedback': [PASS, NO_VARIANTS],
   'array-feedback': [PASS, NO_VARIANTS],
   'compare-known-objects-slow': [PASS, NO_VARIANTS],
   'elements-kind': [PASS, NO_VARIANTS],
   'opt-elements-kind': [PASS, NO_VARIANTS],
   'smi-representation': [PASS, NO_VARIANTS],
 
   # Some tests are just too slow to run for now.
   'big-object-literal': [PASS, NO_VARIANTS],
@@ skipping 588 matching lines @@
   'regress/regress-2653': [SKIP],
 }],  # 'deopt_fuzzer == 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'
 ]