Remove Compiler and JavaScriptBackend from class_stub_generator

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

Index: pkg/compiler/lib/src/js_emitter/lazy_emitter/model_emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/lazy_emitter/model_emitter.dart b/pkg/compiler/lib/src/js_emitter/lazy_emitter/model_emitter.dart
index 35a6b776acd439aa409aeab2e908610b72c6c869..4ad99ddbd1ca6afe1148a8b70bda006d1d23a20e 100644
--- a/pkg/compiler/lib/src/js_emitter/lazy_emitter/model_emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/lazy_emitter/model_emitter.dart
@@ -208,7 +208,8 @@ class ModelEmitter {
     Map<String, dynamic> holes = {
       'deferredInitializer': emitDeferredInitializerGlobal(program.loadMap),
       'holders': emitHolders(program.holders),
-      'tearOff': buildTearOffCode(backend),
+      'tearOff': buildTearOffCode(compiler.options, backend.emitter.emitter,
+          backend.namer, compiler.commonElements),
       'parseFunctionDescriptor':
           js.js.statement(parseFunctionDescriptorBoilerplate, {
         'argumentCount': js.string(namer.requiredParameterField),