Throw exceptions from ClassLinker.

Change-Id: I0a00595d675af21c259639800c80dbd61ba721ff
diff --git a/src/thread.h b/src/thread.h
index 446a8ec..03f3ef6 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -364,6 +364,8 @@
   void ThrowNewException(const char* exception_class_descriptor, const char* fmt, ...)
       __attribute__ ((format(printf, 3, 4)));
 
+  void ThrowNewExceptionV(const char* exception_class_descriptor, const char* fmt, va_list ap);
+
   // This exception is special, because we need to pre-allocate an instance.
   void ThrowOutOfMemoryError();