[runtime] Use DCHECK_EQ instead of DCHECK for number of args.

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 <memory>
 
 #include "src/accessors.h"
 #include "src/arguments.h"
@@ skipping 502 matching lines @@
 
  private:
   Object** parameters_;
 };
 
 }  // namespace
 
 
 RUNTIME_FUNCTION(Runtime_NewSloppyArguments_Generic) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, callee, 0);
   // This generic runtime function can also be used when the caller has been
   // inlined, we use the slow but accurate {GetCallerArguments}.
   int argument_count = 0;
   std::unique_ptr<Handle<Object>[]> arguments =
       GetCallerArguments(isolate, &argument_count);
   HandleArguments argument_getter(arguments.get());
   return *NewSloppyArguments(isolate, callee, argument_getter, argument_count);
 }
 
@@ skipping 44 matching lines @@
     for (int i = 0; i < num_elements; i++) {
       elements->set(i, *arguments[i + start_index], mode);
     }
   }
   return *result;
 }
 
 
 RUNTIME_FUNCTION(Runtime_NewSloppyArguments) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 3);
+  DCHECK_EQ(3, args.length());
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, callee, 0);
   Object** parameters = reinterpret_cast<Object**>(args[1]);
   CONVERT_SMI_ARG_CHECKED(argument_count, 2);
   ParameterArguments argument_getter(parameters);
   return *NewSloppyArguments(isolate, callee, argument_getter, argument_count);
 }
 
 RUNTIME_FUNCTION(Runtime_NewArgumentsElements) {
   HandleScope scope(isolate);
   DCHECK_EQ(2, args.length());
@@ skipping 66 matching lines @@
 
       JSGlobalObject::InvalidatePropertyCell(global_object, name);
     }
   }
   return isolate->heap()->undefined_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_NewScriptContext) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 2);
+  DCHECK_EQ(2, args.length());
 
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
   CONVERT_ARG_HANDLE_CHECKED(ScopeInfo, scope_info, 1);
   Handle<JSGlobalObject> global_object(function->context()->global_object());
   Handle<Context> native_context(global_object->native_context());
   Handle<ScriptContextTable> script_context_table(
       native_context->script_context_table());
 
   Object* name_clash_result =
       FindNameClash(scope_info, global_object, script_context_table);
@@ skipping 12 matching lines @@
   DCHECK(*global_object == result->global_object());
 
   Handle<ScriptContextTable> new_script_context_table =
       ScriptContextTable::Extend(script_context_table, result);
   native_context->set_script_context_table(*new_script_context_table);
   return *result;
 }
 
 RUNTIME_FUNCTION(Runtime_NewFunctionContext) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 2);
+  DCHECK_EQ(2, args.length());
 
   CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0);
   CONVERT_SMI_ARG_CHECKED(scope_type, 1);
 
   DCHECK(function->context() == isolate->context());
   int length = function->shared()->scope_info()->ContextLength();
   return *isolate->factory()->NewFunctionContext(
       length, function, static_cast<ScopeType>(scope_type));
 }
 
@@ skipping 256 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