Rename regexp to reflect review feedback on semicolon change.

lib/compiler/implementation/js/printer.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 js;
 
 class Printer implements NodeVisitor {
   final bool shouldCompressOutput;
   leg.Compiler compiler;
   leg.CodeBuffer outBuffer;
@@ skipping 26 matching lines @@
 
   String lastAddedString = null;
   int get lastCharCode {
     if (lastAddedString == null) return 0;
     assert(lastAddedString.length != "");
     return lastAddedString.charCodeAt(lastAddedString.length - 1);
   }
 
   void out(String str) {
     if (str != "") {
-      const identifierRegexp = const RegExp(r'^[a-zA-Z_0-9$]');
+      const identifierCharacterRegExp = const RegExp(r'^[a-zA-Z_0-9$]');
       if (pendingSemicolon && (!shouldCompressOutput || str != "}")) {
         outBuffer.add(";");
       }
       if (pendingSpace &&
-          (!shouldCompressOutput || identifierRegexp.hasMatch(str))) {
+          (!shouldCompressOutput || identifierCharacterRegExp.hasMatch(str))) {
         outBuffer.add(" ");
       }
       pendingSpace = false;
       pendingSemicolon = false;
       outBuffer.add(str);
       lastAddedString = str;
     }
   }
 
   void outLn(String str) {
@@ skipping 941 matching lines @@
       }
       codes.add(charCodes.$0 + digit);
       newName = new String.fromCharCodes(codes);
     }
     assert(const RegExp(r'[a-zA-Z][a-zA-Z0-9]*').hasMatch(newName));
     nameNumber++;
     maps.last[oldName] = newName;
     return newName;
   }
 }