Implement new Function.prototype.toString and fix CreateDynamicFunction parsing

test/test262/test262.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
 #       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 233 matching lines @@
   'language/eval-code/direct/non-definable-function-with-variable': [FAIL],
   'language/eval-code/indirect/non-definable-function-with-function': [FAIL],
   'language/eval-code/indirect/non-definable-function-with-variable': [FAIL],
   'language/global-code/script-decl-func-err-non-configurable': [FAIL],
   'language/global-code/script-decl-var-collision': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4124
   'built-ins/Simd/*': [SKIP],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=4958
-  'built-ins/Function/prototype/toString/AsyncFunction': [FAIL],
-  'built-ins/Function/prototype/toString/async-function-declaration': [FAIL],
-  'built-ins/Function/prototype/toString/async-function-expression': [FAIL],
-  'built-ins/Function/prototype/toString/async-method': [FAIL],
-  'built-ins/Function/prototype/toString/Function': [FAIL],
-  'built-ins/Function/prototype/toString/GeneratorFunction': [FAIL],
-  'built-ins/Function/prototype/toString/function-declaration': [FAIL],
-  'built-ins/Function/prototype/toString/function-declaration-non-simple-parameter-list': [FAIL],
-  'built-ins/Function/prototype/toString/function-expression': [FAIL],
-  'built-ins/Function/prototype/toString/generator-function-declaration': [FAIL],
-  'built-ins/Function/prototype/toString/generator-function-expression': [FAIL],
-  'built-ins/Function/prototype/toString/generator-method': [FAIL],
-  'built-ins/Function/prototype/toString/getter-class': [FAIL],
-  'built-ins/Function/prototype/toString/getter-class-static': [FAIL],
-  'built-ins/Function/prototype/toString/getter-object': [FAIL],
-  'built-ins/Function/prototype/toString/line-terminator-normalisation-CR': [FAIL],
-  'built-ins/Function/prototype/toString/line-terminator-normalisation-CR-LF': [FAIL],
-  'built-ins/Function/prototype/toString/line-terminator-normalisation-LF': [FAIL],
-  'built-ins/Function/prototype/toString/method-class': [FAIL],
-  'built-ins/Function/prototype/toString/method-class-static': [FAIL],
-  'built-ins/Function/prototype/toString/method-computed-property-name': [FAIL],
-  'built-ins/Function/prototype/toString/method-object': [FAIL],
-  'built-ins/Function/prototype/toString/setter-class': [FAIL],
-  'built-ins/Function/prototype/toString/setter-class-static': [FAIL],
-  'built-ins/Function/prototype/toString/setter-object': [FAIL],
-  'built-ins/Function/prototype/toString/unicode': [FAIL],
+  'built-ins/Function/prototype/toString/AsyncFunction': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/async-function-declaration': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/async-function-expression': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/async-method': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/Function': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/GeneratorFunction': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/function-declaration': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/function-declaration-non-simple-parameter-list': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/function-expression': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/generator-function-declaration': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/generator-function-expression': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/generator-method': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/getter-class': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/getter-class-static': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/getter-object': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/line-terminator-normalisation-CR': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/line-terminator-normalisation-CR-LF': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/line-terminator-normalisation-LF': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/method-class': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/method-class-static': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/method-computed-property-name': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/method-object': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/setter-class': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/setter-class-static': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/setter-object': ['--harmony-function-tostring'],
+  'built-ins/Function/prototype/toString/unicode': ['--harmony-function-tostring'],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=5115
   'language/statements/class/subclass/class-definition-null-proto-missing-return-override': [FAIL],
   'language/statements/class/subclass/class-definition-null-proto-this': [FAIL],
 
   # https://bugs.chromium.org/p/v8/issues/detail?id=5116
   'built-ins/Object/internals/DefineOwnProperty/nan-equivalence': [PASS, FAIL],
   'built-ins/TypedArray/prototype/fill/fill-values-conversion-operations-consistent-nan': [PASS, FAIL],
   'built-ins/TypedArrays/internals/DefineOwnProperty/conversion-operation-consistent-nan': [PASS, FAIL],
   'built-ins/TypedArrays/internals/Set/conversion-operation-consistent-nan': [PASS, FAIL],
@@ skipping 408 matching lines @@
 
 ['variant == asm_wasm', {
   '*': [SKIP],
 }],  # variant == asm_wasm
 
 ['variant == wasm_traps', {
   '*': [SKIP],
 }],  # variant == wasm_traps
 
 ]