Compute the right catch location for the debugger.

Also remove tls ThrowLocation, it is not needed anymore.

Change-Id: I78fddf09ce968ca475e39c17fa76d699c589c8d9
diff --git a/runtime/reflection.cc b/runtime/reflection.cc
index 2aeb92d..4acd07f 100644
--- a/runtime/reflection.cc
+++ b/runtime/reflection.cc
@@ -366,7 +366,7 @@
       CHECK(self->IsExceptionPending());
       LOG(ERROR) << "Internal error: unresolvable type for argument type in JNI invoke: "
           << h_m->GetTypeDescriptorFromTypeIdx(type_idx) << "\n"
-          << self->GetException(nullptr)->Dump();
+          << self->GetException()->Dump();
       self->ClearException();
       ++error_count;
     } else if (!param_type->IsPrimitive()) {