Move most codegen registrations into WorldImpact.

pkg/compiler/lib/src/js_backend/codegen/glue.dart

Index: pkg/compiler/lib/src/js_backend/codegen/glue.dart
diff --git a/pkg/compiler/lib/src/js_backend/codegen/glue.dart b/pkg/compiler/lib/src/js_backend/codegen/glue.dart
index 66f09e5a7d6ff90320d8f733ef8a8d5c2182de1c..070a4f8e170e24159672555fed8204263c8ed1e6 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/glue.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/glue.dart
@@ -109,10 +109,6 @@ class Glue {
     return _backend.helpers.createInvocationMirror;
   }
 
-  void registerUseInterceptorInCodegen() {
-    _backend.registerUseInterceptor(_enqueuer);
-  }
-
   bool isInterceptedSelector(Selector selector) {
     return _backend.isInterceptedSelector(selector);
   }
@@ -247,11 +243,6 @@ class Glue {
     return representation;
   }
 
-  void registerIsCheck(DartType type, Registry registry) {
-    _enqueuer.registerIsCheck(type);
-    _backend.registerIsCheckForCodegen(type, _enqueuer, registry);
-  }
-
   js.Name getTypeTestTag(DartType type) {
     return _backend.namer.operatorIsType(type);
   }