Using identical(xxx, typeProvider.yyy) is not compatible with Analysis Driver.

pkg/analyzer/lib/src/dart/constant/evaluation.dart

 // Copyright (c) 2014, 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.
 
 library analyzer.src.dart.constant.evaluation;
 
 import 'dart:collection';
 
 import 'package:analyzer/context/declared_variables.dart';
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 457 matching lines @@
       // that we can emulate.
       if (constructor.name == "fromEnvironment") {
         if (!checkFromEnvironmentArguments(
             arguments, argumentValues, namedArgumentValues, definingClass)) {
           errorReporter.reportErrorForNode(
               CompileTimeErrorCode.CONST_EVAL_THROWS_EXCEPTION, node);
           return null;
         }
         String variableName =
             argumentCount < 1 ? null : argumentValues[0].toStringValue();
-        if (identical(definingClass, typeProvider.boolType)) {
+        if (definingClass == typeProvider.boolType) {
           DartObject valueFromEnvironment;
           valueFromEnvironment =
               _declaredVariables.getBool(typeProvider, variableName);
           return computeValueFromEnvironment(
               valueFromEnvironment,
               new DartObjectImpl(typeProvider.boolType, BoolState.FALSE_STATE),
               namedArgumentValues);
-        } else if (identical(definingClass, typeProvider.intType)) {
+        } else if (definingClass == typeProvider.intType) {
           DartObject valueFromEnvironment;
           valueFromEnvironment =
               _declaredVariables.getInt(typeProvider, variableName);
           return computeValueFromEnvironment(
               valueFromEnvironment,
               new DartObjectImpl(typeProvider.nullType, NullState.NULL_STATE),
               namedArgumentValues);
-        } else if (identical(definingClass, typeProvider.stringType)) {
+        } else if (definingClass == typeProvider.stringType) {
           DartObject valueFromEnvironment;
           valueFromEnvironment =
               _declaredVariables.getString(typeProvider, variableName);
           return computeValueFromEnvironment(
               valueFromEnvironment,
               new DartObjectImpl(typeProvider.nullType, NullState.NULL_STATE),
               namedArgumentValues);
         }
       } else if (constructor.name == "" &&
-          identical(definingClass, typeProvider.symbolType) &&
+          definingClass == typeProvider.symbolType &&
           argumentCount == 1) {
         if (!checkSymbolArguments(
             arguments, argumentValues, namedArgumentValues)) {
           errorReporter.reportErrorForNode(
               CompileTimeErrorCode.CONST_EVAL_THROWS_EXCEPTION, node);
           return null;
         }
         String argumentValue = argumentValues[0].toStringValue();
         return new DartObjectImpl(
             definingClass, new SymbolState(argumentValue));
@@ skipping 1615 matching lines @@
   }
 
   @override
   String toString() {
     if (value == null) {
       return "error";
     }
     return value.toString();
   }
 }