Fix 044-proxy. Implement proxy for now, working on x86 and ARM.

Already added a TODO to do the assembly code for x86 and ARM for proxy.
Use LLVM .ll for multi-architecture now.

Change-Id: Ibdeeee113dcf284592e9d7769d3044438cb1e453
diff --git a/src/runtime_support.h b/src/runtime_support.h
index bbb9512..673a535 100644
--- a/src/runtime_support.h
+++ b/src/runtime_support.h
@@ -207,6 +207,8 @@
   return class_linker->ResolveString(string_idx, referrer);
 }
 
+extern void ThrowNewUndeclaredThrowableException(Thread* self, JNIEnv* env, Throwable* exception);
+
 }  // namespace art
 
 #endif  // ART_SRC_RUNTIME_SUPPORT_H_