Convert isX() methods to isX getter.

pkg/analyzer_experimental/lib/src/generated/sdk_io.dart

 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 library engine.sdk.io;
 import 'dart:io';
 import 'java_core.dart';
 import 'java_io.dart';
 import 'java_engine.dart';
 import 'java_engine_io.dart';
 import 'source_io.dart';
 import 'error.dart';
@@ skipping 282 matching lines @@
   /**
    * Return `true` if this SDK includes documentation.
    * @return `true` if this installation of the SDK has documentation
    */
   bool hasDocumentation() => docDirectory.exists();
 
   /**
    * Return `true` if the Dartium binary is available.
    * @return `true` if the Dartium binary is available
    */
-  bool isDartiumInstalled() => dartiumExecutable != null;
+  bool get isDartiumInstalled => dartiumExecutable != null;
   Source mapDartUri(ContentCache contentCache, String dartUri) {
     SdkLibrary library = getSdkLibrary(dartUri);
     if (library == null) {
       return null;
     }
     return new FileBasedSource.con2(contentCache, new JavaFile.relative(libraryDirectory, library.path), UriKind.DART_URI);
   }
 
   /**
    * Ensure that the dart VM is executable. If it is not, make it executable and log that it was
@@ skipping 180 matching lines @@
     return null;
   }
 }
 class AnalysisErrorListener_8 implements AnalysisErrorListener {
   List<bool> foundError;
   AnalysisErrorListener_8(this.foundError);
   void onError(AnalysisError error) {
     foundError[0] = true;
   }
 }