Revert "Revert "Enable optimizations with --debuggable.""

This reverts commit b7d27a53cb280a943c0a63a9e0806cf8e3ae4cde.

Change-Id: I398c23863e4fd86a3112076417378d22efd08306
diff --git a/runtime/entrypoints/entrypoint_utils.h b/runtime/entrypoints/entrypoint_utils.h
index 53f2677..4217cab 100644
--- a/runtime/entrypoints/entrypoint_utils.h
+++ b/runtime/entrypoints/entrypoint_utils.h
@@ -26,6 +26,7 @@
 #include "gc/allocator_type.h"
 #include "invoke_type.h"
 #include "jvalue.h"
+#include "runtime.h"
 
 namespace art {
 
@@ -179,6 +180,10 @@
 template <typename INT_TYPE, typename FLOAT_TYPE>
 inline INT_TYPE art_float_to_integral(FLOAT_TYPE f);
 
+ArtMethod* GetCalleeSaveMethodCaller(ArtMethod** sp,
+                                     Runtime::CalleeSaveType type,
+                                     bool do_caller_check = false);
+
 }  // namespace art
 
 #endif  // ART_RUNTIME_ENTRYPOINTS_ENTRYPOINT_UTILS_H_