Change dex cache to be java object instead of array, add pointer to dex file in dex cache.

Generic clean up to facilitate having GDB macros for Pretty* helper functions.

Improved cleanliness of DexCache since having it as an object array was not the best solution.

Fixed a bug in InOrderWalk caused by ResolveType sometimes allocating classes.

Rename C++ Method to AbstractMethod and add two new classes Constructor, Method which both inherit from AbstractMethod.

Rename done to have the C++ code be closer to the java code.

Change-Id: I4995b4c5e47a3822192b08afa24a639d3b1f4da9
diff --git a/src/nth_caller_visitor.h b/src/nth_caller_visitor.h
index 0f29ae7..6b3894e 100644
--- a/src/nth_caller_visitor.h
+++ b/src/nth_caller_visitor.h
@@ -38,7 +38,7 @@
 
   size_t n;
   size_t count;
-  Method* caller;
+  AbstractMethod* caller;
 };
 
 }  // namespace art