[Interpreter] Adds support for const/let variables to interpreter.

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
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 725 matching lines @@
 }],  # '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'
 
 ['ignition == True', {
-  'const*': [SKIP],
   'debug-*': [SKIP],
   'es6/*': [SKIP],
   'es7/*': [SKIP],
   'strong/*': [SKIP],
   'harmony/*': [SKIP],
   'regress/debug*': [SKIP],
   'regress/regress-debug*': [SKIP],
 
   # TODO(4684): Support for "with" statements is missing.
   'regress/regress-1528': [FAIL],
@@ skipping 15 matching lines @@
   'array-literal-transitions': [SKIP],
   'break': [SKIP],
   'call-runtime-tail': [SKIP],
   'compiler/deopt-inlined-smi': [SKIP],
   'compiler/deopt-tonumber-compare': [SKIP],
   'compiler/expression-trees': [SKIP],
   'compiler/optimized-for-in': [SKIP],
   'compiler/opt-next-call-turbo': [SKIP],
   'compiler/regress-3786': [SKIP],
   'compiler/regress-446647': [SKIP],
-  'compiler/regress-447567': [SKIP],
-  'compiler/regress-96989': [SKIP],
-  'compiler/regress-const': [SKIP],
   'compiler/regress-funarguments': [SKIP],
   'compiler/regress-stacktrace-methods': [SKIP],
   'compiler/rotate': [SKIP],
   'compiler/strict-recompile': [SKIP],
   'compiler/try-binop': [SKIP],
   'compiler/try-deopt': [SKIP],
   'compiler/uint32': [SKIP],
   'compiler/variables': [SKIP],
   'contextual-calls': [SKIP],
+  'const-declaration': [SKIP],
+  'const-redecl': [SKIP],

[mythria, 2016/02/01 10:02:18]

These two fail because with is not supported.

   'cyclic-array-to-string': [SKIP],
   'd8-worker-sharedarraybuffer': [SKIP],
-  'declare-locally': [SKIP],
   'delete-in-with': [SKIP],
   'deserialize-optimize-inner': [SKIP],
   'double-equals': [SKIP],
-  'eval-enclosing-function-name': [SKIP],
   'eval': [SKIP],
   'eval-stack-trace': [SKIP],
   'eval-typeof-non-existing': [SKIP],
   'field-type-tracking': [SKIP],
   'getter-in-prototype': [SKIP],
-  'global-const-var-conflicts': [SKIP],
   'global-hash': [SKIP],
   'global-load-from-eval-in-with': [SKIP],
   'global-load-from-nested-eval': [SKIP],
   'global-vars-with': [SKIP],
   'messages': [SKIP],
   'override-read-only-property': [SKIP],
   'property-load-across-eval': [SKIP],
   'proto-accessor': [SKIP],
   'readonly': [SKIP],
   'receiver-in-with-calls': [SKIP],
   'regress-3225': [SKIP],
   'regress/poly_count_operation': [SKIP],
   'regress/regress-102153': [SKIP],
   'regress/regress-1030466': [SKIP],
   'regress/regress-1079': [SKIP],
   'regress/regress-109195': [SKIP],
   'regress/regress-1114040': [SKIP],
   'regress/regress-1125': [SKIP],
   'regress/regress-1170187': [SKIP],
   'regress/regress-1170': [SKIP],
   'regress/regress-1177809': [SKIP],
-  'regress/regress-1178598': [SKIP],
   'regress/regress-119609': [SKIP],
   'regress/regress-1199637': [SKIP],
-  'regress/regress-1200351': [SKIP],
   'regress/regress-123919': [SKIP],
   'regress/regress-124594': [SKIP],
   'regress/regress-124': [SKIP],
   'regress/regress-131994': [SKIP],
   'regress/regress-1412': [SKIP],
   'regress/regress-1436': [SKIP],
   'regress/regress-147497': [SKIP],
   'regress/regress-1523': [SKIP],
   'regress/regress-1586': [SKIP],
   'regress/regress-1639-2': [SKIP],
   'regress/regress-1639': [SKIP],
   'regress/regress-1790': [SKIP],
   'regress/regress-1853': [SKIP],
-  'regress/regress-186': [SKIP],
   'regress/regress-1980': [SKIP],
   'regress/regress-2071': [SKIP],
   'regress/regress-220': [SKIP],
   'regress/regress-2318': [SKIP],
   'regress/regress-2618': [SKIP],
   'regress/regress-263': [SKIP],
   'regress/regress-265': [SKIP],
   'regress/regress-269': [SKIP],
   'regress/regress-2790': [SKIP],
   'regress/regress-2825': [SKIP],
   'regress/regress-3138': [SKIP],
   'regress/regress-318420': [SKIP],
   'regress/regress-353551': [SKIP],
   'regress/regress-354357': [SKIP],
-  'regress/regress-3926': [SKIP],
   'regress/regress-3960': [SKIP],
   'regress/regress-3969': [SKIP],
   'regress/regress-3985': [SKIP],
   'regress/regress-4121': [SKIP],
   'regress/regress-4169': [SKIP],
   'regress/regress-419663': [SKIP],
   'regress/regress-4214': [SKIP],
   'regress/regress-4255-4': [SKIP],
   'regress/regress-4266': [SKIP],
   'regress/regress-430201b': [SKIP],
   'regress/regress-430201': [SKIP],
   'regress/regress-4309-1': [SKIP],
   'regress/regress-4309-2': [SKIP],
   'regress/regress-4309-3': [SKIP],
   'regress/regress-4320': [SKIP],
   'regress/regress-4374': [SKIP],
-  'regress/regress-4388': [SKIP],
   'regress/regress-446389': [SKIP],
   'regress/regress-447756': [SKIP],
   'regress/regress-4509-Class-constructor-typeerror-realm' : [SKIP],
   'regress/regress-4515': [SKIP],
   'regress/regress-4521': [SKIP],
   'regress/regress-4525': [SKIP],
   'regress/regress-453481': [SKIP],
   'regress/regress-455207': [SKIP],
   'regress/regress-457935': [SKIP],
   'regress/regress-476488': [SKIP],
   'regress/regress-503565': [SKIP],
   'regress/regress-514362': [SKIP],
   'regress/regress-520029': [SKIP],
   'regress/regress-542100': [SKIP],
   'regress/regress-544991': [SKIP],
   'regress/regress-572589': [SKIP],
   'regress/regress-70066': [SKIP],
   'regress/regress-799761': [SKIP],
-  'regress/regress-88591': [SKIP],
   'regress/regress-94873': [SKIP],
   'regress/regress-95485': [SKIP],
   'regress/regress-97116b': [SKIP],
   'regress/regress-97116': [SKIP],
   'regress/regress-998565': [SKIP],
   'regress/regress-arg-materialize-store': [SKIP],
   'regress/regress-assignment-in-test-context': [SKIP],
   'regress/regress-conditional-position': [SKIP],
   'regress/regress-crbug-109362': [SKIP],
   'regress/regress-crbug-119800': [SKIP],
@@ skipping 111 matching lines @@
   # Tests taking too long.
   'array-functions-prototype-misc': [SKIP],
   'strong/implicit-conversions': [SKIP],
   'strong/load-element-mutate-backing-store': [SKIP],
 
   # Stack overflow.
   'big-array-literal': [SKIP],
 }],  # 'gcov_coverage'
 
 ]