Fix native argument handling

runtime/lib/regexp.cc

Index: runtime/lib/regexp.cc
===================================================================
--- runtime/lib/regexp.cc	(revision 14922)
+++ runtime/lib/regexp.cc	(working copy)
@@ -21,12 +21,13 @@
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_factory, 4) {
-  ASSERT(AbstractTypeArguments::CheckedHandle(arguments->At(0)).IsNull());
-  const Instance& arg1 = Instance::CheckedHandle(arguments->At(1));
+  ASSERT(AbstractTypeArguments::CheckedHandle(
+      arguments->NativeArgAt(0)).IsNull());
+  const Instance& arg1 = Instance::CheckedHandle(arguments->NativeArgAt(1));
   CheckAndThrowExceptionIfNull(arg1);
-  GET_NATIVE_ARGUMENT(String, pattern, arguments->At(1));
-  GET_NATIVE_ARGUMENT(Instance, handle_multi_line, arguments->At(2));
-  GET_NATIVE_ARGUMENT(Instance, handle_ignore_case, arguments->At(3));
+  GET_NATIVE_ARGUMENT(String, pattern, arguments->NativeArgAt(1));
+  GET_NATIVE_ARGUMENT(Instance, handle_multi_line, arguments->NativeArgAt(2));
+  GET_NATIVE_ARGUMENT(Instance, handle_ignore_case, arguments->NativeArgAt(3));
   bool ignore_case = handle_ignore_case.raw() == Bool::True();
   bool multi_line = handle_multi_line.raw() == Bool::True();
   return Jscre::Compile(pattern, multi_line, ignore_case);
@@ -34,28 +35,28 @@
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_getPattern, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   return regexp.pattern();
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_multiLine, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   return Bool::Get(regexp.is_multi_line());
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_ignoreCase, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   return Bool::Get(regexp.is_ignore_case());
 }
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_getGroupCount, 1) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
   if (regexp.is_initialized()) {
     return regexp.num_bracket_expressions();
@@ -72,12 +73,12 @@
 
 
 DEFINE_NATIVE_ENTRY(JSSyntaxRegExp_ExecuteMatch, 3) {
-  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->At(0));
+  const JSRegExp& regexp = JSRegExp::CheckedHandle(arguments->NativeArgAt(0));
   ASSERT(!regexp.IsNull());
-  const Instance& arg1 = Instance::CheckedHandle(arguments->At(1));
+  const Instance& arg1 = Instance::CheckedHandle(arguments->NativeArgAt(1));
   CheckAndThrowExceptionIfNull(arg1);
-  GET_NATIVE_ARGUMENT(String, str, arguments->At(1));
-  GET_NATIVE_ARGUMENT(Smi, start_index, arguments->At(2));
+  GET_NATIVE_ARGUMENT(String, str, arguments->NativeArgAt(1));
+  GET_NATIVE_ARGUMENT(Smi, start_index, arguments->NativeArgAt(2));
   return Jscre::Execute(regexp, str, start_index.Value());
 }