ART: Add dex::ProtoIndex

Test: m -j32 test-art-host
Change-Id: Ic2d2a7a43be1b8590b97cdf3729200b043ffc6a3
diff --git a/runtime/entrypoints/entrypoint_utils.cc b/runtime/entrypoints/entrypoint_utils.cc
index a58946a..7fc8db3 100644
--- a/runtime/entrypoints/entrypoint_utils.cc
+++ b/runtime/entrypoints/entrypoint_utils.cc
@@ -268,7 +268,7 @@
 }
 
 ObjPtr<mirror::MethodType> ResolveMethodTypeFromCode(ArtMethod* referrer,
-                                                     uint32_t proto_idx) {
+                                                     dex::ProtoIndex proto_idx) {
   Thread::PoisonObjectPointersIfDebug();
   ObjPtr<mirror::MethodType> method_type =
       referrer->GetDexCache()->GetResolvedMethodType(proto_idx);