Split World usage into open, inference, and closed world.

pkg/compiler/lib/src/dump_info.dart

 // Copyright (c) 2013, 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 dump_info;
 
 import 'dart:convert'
     show ChunkedConversionSink, JsonEncoder, StringConversionSink;
 
 import 'package:dart2js_info/info.dart';
@@ skipping 248 matching lines @@
             parameter.name,
             '${compiler.globalInference.getGuaranteedTypeOfElement(parameter)}',
             '${parameter.node.type}'));
       });
     }
 
     String returnType = null;
     // TODO(sigmund): why all these checks?
     if (element.isInstanceMember &&
         !element.isAbstract &&
-        compiler.world.allFunctions.contains(element)) {
+        compiler.closedWorld.allFunctions.contains(element)) {
       returnType = '${element.type.returnType}';
     }
     String inferredReturnType =
         '${compiler.globalInference.getGuaranteedReturnTypeOfElement(element)}';
-    String sideEffects = '${compiler.world.getSideEffectsOfElement(element)}';
+    String sideEffects =
+        '${compiler.closedWorld.getSideEffectsOfElement(element)}';
 
     int inlinedCount = compiler.dumpInfoTask.inlineCount[element];
     if (inlinedCount == null) inlinedCount = 0;
 
     FunctionInfo info = new FunctionInfo(
         name: name,
         functionKind: kind,
         // We use element.hashCode because it is globally unique and it is
         // available while we are doing codegen.
         coverageId: '${element.hashCode}',
@@ skipping 146 matching lines @@
    */
   Iterable<Selection> getRetaining(Element element) {
     WorldImpact impact = impacts[element];
     if (impact == null) return const <Selection>[];
 
     var selections = <Selection>[];
     compiler.impactStrategy.visitImpact(
         element,
         impact,
         new WorldImpactVisitorImpl(visitDynamicUse: (dynamicUse) {
-          selections.addAll(compiler.world.allFunctions
+          selections.addAll(compiler.closedWorld.allFunctions
               .filter(dynamicUse.selector, dynamicUse.mask)
               .map((e) => new Selection(e, dynamicUse.mask)));
         }, visitStaticUse: (staticUse) {
           selections.add(new Selection(staticUse.element, null));
         }),
         IMPACT_USE);
     return selections;
   }
 
   // Returns true if we care about tracking the size of
@@ skipping 134 matching lines @@
 
     ChunkedConversionSink<Object> sink = encoder.startChunkedConversion(
         new StringConversionSink.fromStringSink(buffer));
     sink.add(new AllInfoJsonCodec().encode(result));
     compiler.reporter.reportInfo(NO_LOCATION_SPANNABLE, MessageKind.GENERIC, {
       'text': "View the dumped .info.json file at "
           "https://dart-lang.github.io/dump-info-visualizer"
     });
   }
 }