Fix build breakage.

Change-Id: I86959eca5d8f5458ff75c78776b0af9db9c26800
diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 42e1a4a..a6ab208 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -706,7 +706,7 @@
       }
 
       case Location::kInvalid: {
-        stack_map_stream_.AddDexRegisterEntry(DexRegisterMap::kNone, 0);
+        stack_map_stream_.AddDexRegisterEntry(DexRegisterLocation::Kind::kNone, 0);
         break;
       }