Perform MixinFullResolution only for source libraries.

pkg/front_end/lib/src/fasta/kernel/kernel_target.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library fasta.kernel_target;
 
 import 'dart:async' show Future;
 
 import 'dart:io' show File;
 
@@ skipping 27 matching lines @@
         TypeParameter,
         VariableDeclaration,
         VariableGet,
         VoidType;
 
 import 'package:kernel/core_types.dart' show CoreTypes;
 import 'package:kernel/transformations/erasure.dart' show Erasure;
 
 import 'package:kernel/transformations/continuation.dart' as transformAsync;
 
-import 'package:kernel/transformations/mixin_full_resolution.dart'
-    show MixinFullResolution;
+import 'package:kernel/transformations/mixin_full_resolution.dart' as mix;
 
 import 'package:kernel/type_algebra.dart' show substitute;
 
 import '../source/source_loader.dart' show SourceLoader;
 
 import '../source/source_class_builder.dart' show SourceClassBuilder;
 
 import '../target_implementation.dart' show TargetImplementation;
 
 import '../translate_uri.dart' show TranslateUri;
@@ skipping 595 matching lines @@
   }
 
   /// Run all transformations that are needed when building a program for the
   /// first time.
   void runBuildTransformations() {
     transformMixinApplications();
     otherTransformations();
   }
 
   void transformMixinApplications() {
-    new MixinFullResolution(backendTarget).transform(_program);
+    mix.transformLibraries(backendTarget, loader.libraries);
     ticker.logMs("Transformed mixin applications");
   }
 
   void otherTransformations() {
     // TODO(ahe): Don't generate type variables in the first place.
     if (!strongMode) {
       _program.accept(new Erasure());
       ticker.logMs("Erased type variables in generic methods");
     }
     var coreTypes = new CoreTypes(_program);
@@ skipping 46 matching lines @@
   }
   for (Constructor constructor in superclass.constructors) {
     if (constructor.name.name.isEmpty) {
       return constructor.function.requiredParameterCount == 0
           ? constructor
           : null;
     }
   }
   return null;
 }