Prefix resolution_types with Resolution.

pkg/compiler/lib/src/js_backend/patch_resolver.dart

Index: pkg/compiler/lib/src/js_backend/patch_resolver.dart
diff --git a/pkg/compiler/lib/src/js_backend/patch_resolver.dart b/pkg/compiler/lib/src/js_backend/patch_resolver.dart
index d543206d1db406ed7b31df529fa4ea14ca0c5c3a..f7477fef57d8d3de9431fc3548018fd569fbab19 100644
--- a/pkg/compiler/lib/src/js_backend/patch_resolver.dart
+++ b/pkg/compiler/lib/src/js_backend/patch_resolver.dart
@@ -54,8 +54,10 @@ class PatchResolverTask extends CompilerTask {
         assert(invariant(origin, originParameter.patch == patchParameter,
             message: "Inconsistent repatch of $originParameter."));
       }
-      DartType originParameterType = originParameter.computeType(resolution);
-      DartType patchParameterType = patchParameter.computeType(resolution);
+      ResolutionDartType originParameterType =
+          originParameter.computeType(resolution);
+      ResolutionDartType patchParameterType =
+          patchParameter.computeType(resolution);
       if (originParameterType != patchParameterType) {
         reporter.reportError(
             reporter.createMessage(