Remove element from DynamicType.

sdk/lib/_internal/compiler/implementation/ssa/nodes.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of ssa;
 
 abstract class HVisitor<R> {
   R visitAdd(HAdd node);
   R visitBitAnd(HBitAnd node);
   R visitBitNot(HBitNot node);
@@ skipping 1209 matching lines @@
     return false;
   }
 
   HInstruction convertType(Compiler compiler, DartType type, int kind) {
     if (type == null) return this;
     type = type.unalias(compiler);
     // Only the builder knows how to create [HTypeConversion]
     // instructions with generics. It has the generic type context
     // available.
     assert(type.kind != TypeKind.TYPE_VARIABLE);
-    assert(type.treatAsRaw || type.kind == TypeKind.FUNCTION);
+    assert(type.treatAsRaw || type.isFunctionType);
     if (type.isDynamic) return this;
     // The type element is either a class or the void element.
     Element element = type.element;
     if (identical(element, compiler.objectClass)) return this;
     JavaScriptBackend backend = compiler.backend;
     if (type.kind != TypeKind.INTERFACE) {
       return new HTypeConversion(type, kind, backend.dynamicType, this);
     } else if (kind == HTypeConversion.BOOLEAN_CONVERSION_CHECK) {
       // Boolean conversion checks work on non-nullable booleans.
       return new HTypeConversion(type, kind, backend.boolType, this);
@@ skipping 1248 matching lines @@
                               HInstruction context,
                               {bool this.contextIsTypeArguments})
       : super(<HInstruction>[input, context], type),
         checkedType = type,
         receiverTypeCheckSelector = null {
     assert(typeExpression.kind != TypeKind.TYPEDEF);
     sourceElement = input.sourceElement;
   }
 
   bool get hasTypeRepresentation {
-    return typeExpression.kind == TypeKind.INTERFACE && inputs.length > 1;
+    return typeExpression.isInterfaceType && inputs.length > 1;
   }
   HInstruction get typeRepresentation => inputs[1];
 
   bool get hasContext {
-    return typeExpression.kind == TypeKind.FUNCTION && inputs.length > 1;
+    return typeExpression.isFunctionType && inputs.length > 1;
   }
   HInstruction get context => inputs[1];
 
   HInstruction convertType(Compiler compiler, DartType type, int kind) {
     if (typeExpression == type) return this;
     return super.convertType(compiler, type, kind);
   }
 
   bool get isCheckedModeCheck {
     return kind == CHECKED_MODE_CHECK
@@ skipping 518 matching lines @@
 class HDynamicType extends HRuntimeType {
   HDynamicType(DynamicType dartType, TypeMask instructionType)
       : super(const <HInstruction>[], dartType, instructionType);
 
   accept(HVisitor visitor) => visitor.visitDynamicType(this);
 
   int typeCode() => HInstruction.DYNAMIC_TYPE_TYPECODE;
 
   bool typeEquals(HInstruction other) => other is HDynamicType;
 }