Move interpreter to ObjPtr

Moved most of interpreter, interpreter_common,
interpreter_switch_impl, and some of mterp to ObjPtr.

Bug: 31113334

Test: test-art-host ART_TEST_INTERPRETER=true
Test: art/tools/run-libcore-tests.sh '--mode=host' '--variant=X32' --debug

Change-Id: I0935d18287e1332205c17c5a018aa167788ab897
diff --git a/runtime/interpreter/interpreter_mterp_impl.h b/runtime/interpreter/interpreter_mterp_impl.h
index 90d9f89..1be20fa 100644
--- a/runtime/interpreter/interpreter_mterp_impl.h
+++ b/runtime/interpreter/interpreter_mterp_impl.h
@@ -21,6 +21,7 @@
 #include "base/mutex.h"
 #include "dex_file.h"
 #include "jvalue.h"
+#include "obj_ptr.h"
 
 namespace art {