Split up TypeInferrer class.

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, IOSink;
 
@@ skipping 212 matching lines @@
     }
     program = erroneousProgram(isFullProgram);
     return uri == null
         ? new Future<Program>.value(program)
         : writeLinkedProgram(uri, program, isFullProgram: isFullProgram);
   }
 
   Future<Program> writeOutline(Uri uri) async {
     if (loader.first == null) return null;
     try {
-      loader.createTopLevelTypeInferrer();
+      loader.createTypeInferenceEngine();
       await loader.buildOutlines();
       loader.coreLibrary
           .becomeCoreLibrary(const DynamicType(), const VoidType());
       dynamicType.bind(loader.coreLibrary["dynamic"]);
       loader.resolveParts();
       loader.computeLibraryScopes();
       loader.resolveTypes();
       loader.buildProgram();
       loader.checkSemantics();
       List<SourceClassBuilder> sourceClasses = collectAllSourceClasses();
@@ skipping 473 matching lines @@
   }
   for (Constructor constructor in superclass.constructors) {
     if (constructor.name.name.isEmpty) {
       return constructor.function.requiredParameterCount == 0
           ? constructor
           : null;
     }
   }
   return null;
 }