Implement runtime support inlining.

Change-Id: I8608b246a4dfde9959b5b86872f65dfa61646c84
diff --git a/src/shadow_frame.h b/src/shadow_frame.h
index a12abc8..261875e 100644
--- a/src/shadow_frame.h
+++ b/src/shadow_frame.h
@@ -23,6 +23,7 @@
 namespace art {
 
 class Object;
+class Method;
 
 class ShadowFrame {
  public: