[runtime] Kill %Arguments and %ArgumentsLength.

src/runtime/runtime-scopes.cc

Index: src/runtime/runtime-scopes.cc
diff --git a/src/runtime/runtime-scopes.cc b/src/runtime/runtime-scopes.cc
index 1cf04a8dba04d7b7df4a74c379fdd09a0c6516b4..a8f3a749189196663b9f086725dc700df185b13e 100644
--- a/src/runtime/runtime-scopes.cc
+++ b/src/runtime/runtime-scopes.cc
@@ -1137,88 +1137,5 @@ RUNTIME_FUNCTION(Runtime_StoreLookupSlot_Strict) {
   return *value;
 }
 
-
-RUNTIME_FUNCTION(Runtime_ArgumentsLength) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 0);
-  int argument_count = 0;
-  GetCallerArguments(isolate, &argument_count);
-  return Smi::FromInt(argument_count);
-}
-
-
-RUNTIME_FUNCTION(Runtime_Arguments) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
-  CONVERT_ARG_HANDLE_CHECKED(Object, raw_key, 0);
-
-  // Determine the actual arguments passed to the function.
-  int argument_count_signed = 0;
-  base::SmartArrayPointer<Handle<Object>> arguments =
-      GetCallerArguments(isolate, &argument_count_signed);
-  const uint32_t argument_count = argument_count_signed;
-
-  // Try to convert the key to an index. If successful and within
-  // index return the the argument from the frame.
-  uint32_t index = 0;
-  if (raw_key->ToArrayIndex(&index) && index < argument_count) {
-    return *arguments[index];
-  }
-
-  if (raw_key->IsSymbol()) {
-    Handle<Symbol> symbol = Handle<Symbol>::cast(raw_key);
-    if (Name::Equals(symbol, isolate->factory()->iterator_symbol())) {
-      return isolate->native_context()->array_values_iterator();
-    }
-    // Lookup in the initial Object.prototype object.
-    Handle<Object> result;
-    ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-        isolate, result,
-        Object::GetProperty(isolate->initial_object_prototype(),
-                            Handle<Symbol>::cast(raw_key)));
-    return *result;
-  }
-
-  // Convert the key to a string.
-  Handle<Object> converted;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, converted,
-                                     Object::ToString(isolate, raw_key));
-  Handle<String> key = Handle<String>::cast(converted);
-
-  // Try to convert the string key into an array index.
-  if (key->AsArrayIndex(&index)) {
-    if (index < argument_count) {
-      return *arguments[index];
-    } else {
-      Handle<Object> initial_prototype(isolate->initial_object_prototype());
-      Handle<Object> result;
-      ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-          isolate, result,
-          Object::GetElement(isolate, initial_prototype, index));
-      return *result;
-    }
-  }
-
-  // Handle special arguments properties.
-  if (String::Equals(isolate->factory()->length_string(), key)) {
-    return Smi::FromInt(argument_count);
-  }
-  if (String::Equals(isolate->factory()->callee_string(), key)) {
-    JavaScriptFrameIterator it(isolate);
-    JSFunction* function = it.frame()->function();
-    if (is_strict(function->shared()->language_mode())) {
-      THROW_NEW_ERROR_RETURN_FAILURE(
-          isolate, NewTypeError(MessageTemplate::kStrictPoisonPill));
-    }
-    return function;
-  }
-
-  // Lookup in the initial Object.prototype object.
-  Handle<Object> result;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
-      isolate, result,
-      Object::GetProperty(isolate->initial_object_prototype(), key));
-  return *result;
-}
 }  // namespace internal
 }  // namespace v8