Revert "Revert "Fix an outstanding compaction bug in interpreter.""

Fixed the generic trampoline to not use ToJObject when unnecessary.

Bug: 15167269

This reverts commit 3bdb873122964da7937eb070cbcf2ef638a8e459.

Change-Id: I0525d0e0f3afb753c770e1572070a0fa22b02271
diff --git a/runtime/mirror/stack_trace_element.h b/runtime/mirror/stack_trace_element.h
index 22d9b71..e094e8b 100644
--- a/runtime/mirror/stack_trace_element.h
+++ b/runtime/mirror/stack_trace_element.h
@@ -46,10 +46,8 @@
     return GetField32(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_));
   }
 
-  static StackTraceElement* Alloc(Thread* self,
-                                  Handle<String>& declaring_class,
-                                  Handle<String>& method_name,
-                                  Handle<String>& file_name,
+  static StackTraceElement* Alloc(Thread* self, Handle<String> declaring_class,
+                                  Handle<String> method_name, Handle<String> file_name,
                                   int32_t line_number)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
@@ -70,8 +68,8 @@
   int32_t line_number_;
 
   template<bool kTransactionActive>
-  void Init(Handle<String>& declaring_class, Handle<String>& method_name,
-            Handle<String>& file_name, int32_t line_number)
+  void Init(Handle<String> declaring_class, Handle<String> method_name, Handle<String> file_name,
+            int32_t line_number)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
 
   static Class* java_lang_StackTraceElement_;