Convert property methods into getters.

sdk/lib/_internal/compiler/implementation/js_backend/constant_handler_javascript.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.
 
 part of js_backend;
 
 /// [ConstantCompilerTask] for compilation of constants for the JavaScript
 /// backend.
 ///
 /// Since this task needs to distinguish between frontend and backend constants
@@ skipping 95 matching lines @@
   }
 
   /**
    * Returns an [Iterable] of static non final fields that need to be
    * initialized. The fields list must be evaluated in order since they might
    * depend on each other.
    */
   Iterable<VariableElement> getStaticNonFinalFieldsForEmission() {
     return initialVariableValues.keys.where((element) {
       return element.kind == ElementKind.FIELD &&
-             !element.isInstanceMember() &&
-             !element.modifiers.isFinal() &&
+             !element.isInstanceMember &&
+             !element.modifiers.isFinal &&
              // The const fields are all either emitted elsewhere or inlined.
-             !element.modifiers.isConst();
+             !element.modifiers.isConst;
     });
   }
 
   List<VariableElement> getLazilyInitializedFieldsForEmission() {
     return new List<VariableElement>.from(lazyStatics);
   }
 
   /**
    * Returns a list of constants topologically sorted so that dependencies
    * appear before the dependent constant.  [preSortCompare] is a comparator
@@ skipping 70 matching lines @@
     return constant;
   }
 
   Constant createTypeConstant(TypeDeclarationElement element) {
     DartType elementType = element.rawType;
     DartType constantType =
         compiler.backend.typeImplementation.computeType(compiler);
     return new TypeConstant(elementType, constantType);
   }
 }