Move main and isolate handling to enqueuer listeners.

tests/compiler/dart2js/resolver_test.dart

Index: tests/compiler/dart2js/resolver_test.dart
diff --git a/tests/compiler/dart2js/resolver_test.dart b/tests/compiler/dart2js/resolver_test.dart
index 3035fbf822bdb6d44c169b78fd0eb0482e7073d3..79b619abeb45b3671ea30ef9c453e73a96d89290 100644
--- a/tests/compiler/dart2js/resolver_test.dart
+++ b/tests/compiler/dart2js/resolver_test.dart
@@ -248,7 +248,8 @@ Future testSwitch() {
     FunctionElement funElement = fooElement.lookupLocalMember("foo");
     compiler.enqueuer.resolution.applyImpact(new WorldImpactBuilderImpl()
       ..registerStaticUse(new StaticUse.foreignUse(funElement)));
-    compiler.processQueue(compiler.enqueuer.resolution, null);
+    compiler.processQueue(
+        compiler.enqueuer.resolution, null, compiler.libraryLoader.libraries);
     DiagnosticCollector collector = compiler.diagnosticCollector;
     Expect.equals(0, collector.warnings.length);
     Expect.equals(1, collector.errors.length);