Implement Math.random() purely in JavaScript.

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 147563e90104c7d094c93b937bb91c0f34534fc6..b5348c31b6a7a6393495305b61317540cdb436c6 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -6883,16 +6883,6 @@ bool HOptimizedGraphBuilder::TryInlineBuiltinMethodCall(
         return true;
       }
       break;
-    case kMathRandom:
-      if (argument_count == 1 && check_type == RECEIVER_MAP_CHECK) {
-        AddCheckConstantFunction(expr->holder(), receiver, receiver_map);
-        Drop(1);  // Receiver.
-        HGlobalObject* global_object = Add<HGlobalObject>();
-        HRandom* result = New<HRandom>(global_object);
-        ast_context()->ReturnInstruction(result, expr->id());
-        return true;
-      }
-      break;
     case kMathMax:
     case kMathMin:
       if (argument_count == 3 && check_type == RECEIVER_MAP_CHECK) {
@@ -9031,14 +9021,6 @@ void HOptimizedGraphBuilder::GenerateLog(CallRuntime* call) {
 }
 
 
-// Fast support for Math.random().
-void HOptimizedGraphBuilder::GenerateRandomHeapNumber(CallRuntime* call) {
-  HGlobalObject* global_object = Add<HGlobalObject>();
-  HRandom* result = New<HRandom>(global_object);
-  return ast_context()->ReturnInstruction(result, call->id());
-}
-
-
 // Fast support for StringAdd.
 void HOptimizedGraphBuilder::GenerateStringAdd(CallRuntime* call) {
   ASSERT_EQ(2, call->arguments()->length());