Rename Enqueuer.universe to worldBuilder.

pkg/compiler/lib/src/js_emitter/program_builder/collector.dart

Index: pkg/compiler/lib/src/js_emitter/program_builder/collector.dart
diff --git a/pkg/compiler/lib/src/js_emitter/program_builder/collector.dart b/pkg/compiler/lib/src/js_emitter/program_builder/collector.dart
index 9035a14f84d61b33c74ac35cc69b7d3b0d455f94..588649cf9a5df5971f3d2b11d440d51fa9248768 100644
--- a/pkg/compiler/lib/src/js_emitter/program_builder/collector.dart
+++ b/pkg/compiler/lib/src/js_emitter/program_builder/collector.dart
@@ -178,7 +178,7 @@ class Collector {
 
     // Compute needed classes.
     Set<ClassElement> instantiatedClasses = compiler
-        .codegenWorld.directlyInstantiatedClasses
+        .codegenWorldBuilder.directlyInstantiatedClasses

[Siggi Cherem (dart-lang), 2017/01/11 23:54:56]

similar to my other question about the namer - it feels liek by the time we
reach this point, we are dealing with the closed world again and not a builder.
Should these API move to the (now refined) closed world?

[Johnni Winther, 2017/01/12 12:20:12]

Not yet. Added a TODO.

         .where(computeClassFilter())
         .toSet();
 
@@ -286,7 +286,8 @@ class Collector {
       list.add(element);
     }
 
-    Iterable<Element> fields = compiler.codegenWorld.allReferencedStaticFields
+    Iterable<Element> fields = compiler
+        .codegenWorldBuilder.allReferencedStaticFields
         .where((FieldElement field) {
       if (!field.isConst) {
         return field.isField &&