Avoid repeated resolution of types by marking them as resolved.

runtime/vm/class_finalizer.h

Index: runtime/vm/class_finalizer.h
===================================================================
--- runtime/vm/class_finalizer.h	(revision 32680)
+++ runtime/vm/class_finalizer.h	(working copy)
@@ -100,9 +100,6 @@
   // Resolve the class of the type, but not the type's type arguments.
   static void ResolveTypeClass(const Class& cls, const AbstractType& type);
 
-  // Resolve the class of the type and the class of the type's type arguments.
-  static void ResolveType(const Class& cls, const AbstractType& type);
-
   // Resolve the type and target of the redirecting factory.
   static void ResolveRedirectingFactory(const Class& cls,
                                         const Function& factory);
@@ -123,6 +120,7 @@
   static void CheckForLegalConstClass(const Class& cls);
   static RawClass* ResolveClass(const Class& cls,
                                 const UnresolvedClass& unresolved_class);
+  static void ResolveType(const Class& cls, const AbstractType& type);
   static void ResolveRedirectingFactoryTarget(
       const Class& cls,
       const Function& factory,