Introduce short external strings without pointer cache.

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index 1a47e096fb7b097a9eae7f7d0351feebbd15198d..9710fa858614f9ca6a7525f4fadd323339e5d7c6 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -4560,7 +4560,7 @@ bool v8::String::CanMakeExternal() {
     return false;
   }
   int size = obj->Size();  // Byte size of the original string.
-  if (size < i::ExternalString::kSize)
+  if (size < i::ExternalString::kShortSize)

[Lasse Reichstein, 2011/11/23 08:43:20]

Put braces around the then-statement.

[Yang, 2011/11/23 09:58:48]

Done.

     return false;
   i::StringShape shape(*obj);
   return !shape.IsExternal();