Interpreter tweaks

Increase the amount of inlining and hot function hints in the interpreter
to encourage the hot Execute function to be faster.
Performance is 3x slower than Dalvik+JIT on FibonacciFast and similar
microbenchmarks.

Change-Id: I2b1a0c7545f86036b9b1b5ccac881d06292356d8
diff --git a/src/mirror/class.h b/src/mirror/class.h
index dfbe815..0661b42 100644
--- a/src/mirror/class.h
+++ b/src/mirror/class.h
@@ -429,8 +429,7 @@
   // downcast would be necessary. Similarly for interfaces, a class that implements (or an interface
   // that extends) another can be assigned to its parent, but not vice-versa. All Classes may assign
   // to themselves. Classes for primitive types may not assign to each other.
-  bool IsAssignableFrom(const Class* src) const
-      SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+  inline bool IsAssignableFrom(const Class* src) const SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     DCHECK(src != NULL);
     if (this == src) {
       // Can always assign to things of the same type.