Install 'get call' on Closure class.

pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart

Index: pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart
index 216b7d0d0a110430415e5217cd1067323409fcc3..b32e32babec05933a762d9a8f8439d7e1cdaec67 100644
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/old_emitter/class_emitter.dart
@@ -43,14 +43,6 @@ class ClassEmitter extends CodeEmitterHelper {
     emitRuntimeTypeInformation(cls, builder);
     emitNativeInfo(cls, builder);
 
-    if (classElement == backend.closureClass) {
-      // We add a special getter here to allow for tearing off a closure from
-      // itself.
-      String name = namer.getMappedInstanceName(Compiler.CALL_OPERATOR_NAME);
-      jsAst.Fun function = js('function() { return this; }');
-      builder.addProperty(namer.getterNameFromAccessorName(name), function);
-    }
-
     emitTypeVariableReaders(classElement, builder);
 
     emitClassBuilderWithReflectionData(cls, builder, enclosingBuilder);