ES6: Disallow binary and octal representation in Number

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index 3acbb81d89dff0c0d2c21003762bb785c6a7df85..7f13fbca9e809cb39283a9530c6bbb15b46251cf 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -6284,15 +6284,9 @@ RUNTIME_FUNCTION(Runtime_StringToNumber) {
   }
 
   // Slower case.
-  int flags = ALLOW_HEX;
-  if (FLAG_harmony_numeric_literals) {
-    // The current spec draft has not updated "ToNumber Applied to the String
-    // Type", https://bugs.ecmascript.org/show_bug.cgi?id=1584
-    flags |= ALLOW_OCTAL | ALLOW_BINARY;
-  }
-
-  return *isolate->factory()->NewNumber(StringToDouble(
-      isolate->unicode_cache(), *subject, flags));
+  // Octal and binary are not allowed in ToNumber.
+  return *isolate->factory()->NewNumber(
+      StringToDouble(isolate->unicode_cache(), *subject, ALLOW_HEX));
 }