Remove use of Compiler in inferrer engines.

pkg/compiler/lib/src/js_emitter/startup_emitter/model_emitter.dart

 // Copyright (c) 2015, 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 dart2js.js_emitter.startup_emitter.model_emitter;
 
 import 'dart:convert' show JsonEncoder;
 import 'dart:math' show Random;
 
 import 'package:js_runtime/shared/embedded_names.dart'
@@ skipping 249 matching lines @@
   void writeMainFragment(MainFragment fragment, js.Statement code,
       {bool isSplit}) {
     LocationCollector locationCollector;
     List<CodeOutputListener> codeOutputListeners;
     if (shouldGenerateSourceMap) {
       locationCollector = new LocationCollector();
       codeOutputListeners = <CodeOutputListener>[locationCollector];
     }
 
     CodeOutput mainOutput = new StreamCodeOutput(
-        compiler.outputProvider('', 'js', OutputType.js), codeOutputListeners);
+        compiler.outputProvider.createOutputSink('', 'js', OutputType.js),
+        codeOutputListeners);
     outputBuffers[fragment] = mainOutput;
 
     js.Program program = new js.Program([
       buildGeneratedBy(),
       new js.Comment(HOOKS_API_USAGE),
       isSplit ? buildDeferredInitializerGlobal() : new js.Block.empty(),
       code
     ]);
 
     mainOutput.addBuffer(js.createCodeBuffer(
@@ skipping 30 matching lines @@
 
     LocationCollector locationCollector;
     if (shouldGenerateSourceMap) {
       locationCollector = new LocationCollector();
       outputListeners.add(locationCollector);
     }
 
     String hunkPrefix = fragment.outputFileName;
 
     CodeOutput output = new StreamCodeOutput(
-        compiler.outputProvider(
-            hunkPrefix, deferredExtension, OutputType.jsPart),
+        compiler.outputProvider
+            .createOutputSink(hunkPrefix, deferredExtension, OutputType.jsPart),
         outputListeners);
 
     outputBuffers[fragment] = output;
 
     // The [code] contains the function that must be invoked when the deferred
     // hunk is loaded.
     // That function must be in a map from its hashcode to the function. Since
     // we don't know the hash before we actually emit the code we store the
     // function in a temporary field first:
     //
@@ skipping 56 matching lines @@
   ///
   /// The output is written into a separate file that can be used by outside
   /// tools.
   void writeDeferredMap() {
     Map<String, dynamic> mapping = new Map<String, dynamic>();
     // Json does not support comments, so we embed the explanation in the
     // data.
     mapping["_comment"] = "This mapping shows which compiled `.js` files are "
         "needed for a given deferred library import.";
     mapping.addAll(compiler.deferredLoadTask.computeDeferredMap());
-    compiler.outputProvider(
+    compiler.outputProvider.createOutputSink(
         compiler.options.deferredMapUri.path, '', OutputType.info)
       ..add(const JsonEncoder.withIndent("  ").convert(mapping))
       ..close();
   }
 }