[runtime] Deprecate RUNTIME_ASSERT from object ops.

src/runtime/runtime-scopes.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/accessors.h"
 #include "src/arguments.h"
 #include "src/ast/scopeinfo.h"
 #include "src/ast/scopes.h"
@@ skipping 131 matching lines @@
                                     is_var, is_const, is_function);
     if (isolate->has_pending_exception()) return result;
   });
 
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_InitializeVarGlobal) {
   HandleScope scope(isolate);
-  // args[0] == name
-  // args[1] == language_mode
-  // args[2] == value (optional)
-
-  // Determine if we need to assign to the variable if it already
-  // exists (based on the number of arguments).
-  RUNTIME_ASSERT(args.length() == 3);
-
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(String, name, 0);
   CONVERT_LANGUAGE_MODE_ARG_CHECKED(language_mode, 1);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 2);
 
   Handle<JSGlobalObject> global(isolate->context()->global_object());
   RETURN_RESULT_OR_FAILURE(
       isolate, Object::SetProperty(global, name, value, language_mode));
 }
 
 
 RUNTIME_FUNCTION(Runtime_InitializeConstGlobal) {
   HandleScope handle_scope(isolate);
-  // All constants are declared with an initial value. The name
-  // of the constant is the first argument and the initial value
-  // is the second.
-  RUNTIME_ASSERT(args.length() == 2);
+  DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(String, name, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 1);
 
   Handle<JSGlobalObject> global = isolate->global_object();
 
   // Lookup the property as own on the global object.
   LookupIterator it(global, name, global, LookupIterator::OWN_SKIP_INTERCEPTOR);
   Maybe<PropertyAttributes> maybe = JSReceiver::GetPropertyAttributes(&it);
   DCHECK(maybe.IsJust());
   PropertyAttributes old_attributes = maybe.FromJust();
@@ skipping 835 matching lines @@
 RUNTIME_FUNCTION(Runtime_StoreLookupSlot_Strict) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
   CONVERT_ARG_HANDLE_CHECKED(String, name, 0);
   CONVERT_ARG_HANDLE_CHECKED(Object, value, 1);
   RETURN_RESULT_OR_FAILURE(isolate, StoreLookupSlot(name, value, STRICT));
 }
 
 }  // namespace internal
 }  // namespace v8