cps-ir: Implement type tests for interface types without type arguments.

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 ec9918bf517246742126f737b05a8b8c38d7c0ce..47d5b3956ccca842e1fe3a74be87e34211e0696a 100644
--- a/pkg/compiler/lib/src/js_backend/codegen/glue.dart
+++ b/pkg/compiler/lib/src/js_backend/codegen/glue.dart
@@ -11,7 +11,7 @@ import '../../js/js.dart' as js;
 import '../../constants/values.dart';
 import '../../elements/elements.dart';
 import '../../constants/expressions.dart';
-import '../../dart_types.dart' show DartType, TypeVariableType;
+import '../../dart_types.dart' show DartType, TypeVariableType, InterfaceType;
 
 /// Encapsulates the dependencies of the function-compiler to the compiler,
 /// backend and emitter.
@@ -20,9 +20,14 @@ import '../../dart_types.dart' show DartType, TypeVariableType;
 class Glue {
   final Compiler _compiler;
 
+  CodegenEnqueuer get _enqueuer => _compiler.enqueuer.codegen;
+
+  FunctionElement get getInterceptorMethod => _backend.getInterceptorMethod;
+
   JavaScriptBackend get _backend => _compiler.backend;
 
   CodeEmitterTask get _emitter => _backend.emitter;
+
   Namer get _namer => _backend.namer;
 
   Glue(this._compiler);
@@ -71,10 +76,8 @@ class Glue {
     return _namer.invocationName(selector);
   }
 
-  FunctionElement get getInterceptorMethod => _backend.getInterceptorMethod;
-
   void registerUseInterceptorInCodegen() {
-    _backend.registerUseInterceptor(_compiler.enqueuer.codegen);
+    _backend.registerUseInterceptor(_enqueuer);
   }
 
   bool isInterceptedSelector(Selector selector) {
@@ -149,6 +152,10 @@ class Glue {
     return _backend.getGetTypeArgumentByIndex();
   }
 
+  FunctionElement getAddRuntimeTypeInformation() {
+    return _backend.getSetRuntimeTypeInfo();
+  }
+
   js.Expression getSubstitutionName(ClassElement cls) {
     return js.string(_namer.substitutionName(cls));
   }
@@ -167,10 +174,6 @@ class Glue {
     });
   }
 
-  FunctionElement getAddRuntimeTypeInformation() {
-    return _backend.getSetRuntimeTypeInfo();
-  }
-
   js.Expression generateTypeRepresentation(DartType dartType,
                                            List<js.Expression> arguments) {
     int variableIndex = 0;
@@ -180,4 +183,28 @@ class Glue {
     assert(variableIndex == arguments.length);
     return representation;
   }
+
+  bool isNativePrimitiveType(DartType type) {
+    if (type is! InterfaceType) return false;
+    return _backend.isNativePrimitiveType(type.element);
+  }
+
+  void registerIsCheck(DartType type, Registry registry) {
+    _enqueuer.registerIsCheck(type, registry);
+    _backend.registerIsCheckForCodegen(type, _enqueuer, registry);
+  }
+
+  bool isIntClass(ClassElement cls) => cls == _compiler.intClass;
+
+  bool isStringClass(ClassElement cls) => cls == _compiler.stringClass;
+
+  bool isBoolClass(ClassElement cls) => cls == _compiler.boolClass;
+
+  bool isNumClass(ClassElement cls) => cls == _compiler.numClass;
+
+  bool isDoubleClass(ClassElement cls) => cls == _compiler.doubleClass;
+
+  String getTypeTestTag(DartType type) {
+    return _backend.namer.operatorIsType(type);
+  }
 }