Improve java2dart code style - relax 'don't reference variable name in its initializer'.

pkg/analyzer_experimental/lib/src/generated/source_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.source.io;
 import 'source.dart';
 import 'dart:io';
 import 'java_core.dart';
 import 'java_io.dart';
 import 'sdk.dart' show DartSdk;
 import 'engine.dart' show AnalysisContext, AnalysisEngine;
 export 'source.dart';
@@ skipping 147 matching lines @@
   Source fromEncoding(ContentCache contentCache, UriKind kind, Uri uri) {
     if (identical(kind, UriKind.PACKAGE_URI)) {
       return new FileBasedSource.con2(contentCache, new JavaFile.fromUri(uri), kind);
     }
     return null;
   }
   Source resolveAbsolute(ContentCache contentCache, Uri uri) {
     if (!isPackageUri(uri)) {
       return null;
     }
-    String path2 = uri.path;
-    if (path2 == null) {
-      path2 = uri.path;
-      if (path2 == null) {
+    String path = uri.path;
+    if (path == null) {
+      path = uri.path;
+      if (path == null) {
         return null;
       }
     }
     String pkgName;
     String relPath;
-    int index = path2.indexOf('/');
+    int index = path.indexOf('/');
     if (index == -1) {
-      pkgName = path2;
+      pkgName = path;
       relPath = "";
     } else if (index == 0) {
       return null;
     } else {
-      pkgName = path2.substring(0, index);
-      relPath = path2.substring(index + 1);
+      pkgName = path.substring(0, index);
+      relPath = path.substring(index + 1);
     }
     for (JavaFile packagesDirectory in _packagesDirectories) {
-      JavaFile resolvedFile = new JavaFile.relative(packagesDirectory, path2);
+      JavaFile resolvedFile = new JavaFile.relative(packagesDirectory, path);
       if (resolvedFile.exists()) {
         return new FileBasedSource.con2(contentCache, getCanonicalFile(packagesDirectory, pkgName, relPath), UriKind.PACKAGE_URI);
       }
     }
     return new FileBasedSource.con2(contentCache, getCanonicalFile(_packagesDirectories[0], pkgName, relPath), UriKind.PACKAGE_URI);
   }
   Uri restoreAbsolute(Source source) {
     if (source is FileBasedSource) {
       String sourcePath = ((source as FileBasedSource)).file.getPath();
       for (JavaFile packagesDirectory in _packagesDirectories) {
@@ skipping 119 matching lines @@
     }
     return null;
   }
   Source resolveAbsolute(ContentCache contentCache, Uri uri) {
     if (!isFileUri(uri)) {
       return null;
     }
     return new FileBasedSource.con1(contentCache, new JavaFile.fromUri(uri));
   }
 }