Convert raw strings in compiler

lib/compiler/implementation/js_backend/namer.dart

 // Copyright (c) 2011, 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.
 
 /**
  * Assigns JavaScript identifiers to Dart variables, class-names and members.
  */
 class Namer {
   final Compiler compiler;
 
@@ skipping 12 matching lines @@
   final Map<String, LibraryElement> shortPrivateNameOwners;
 
   final Map<Constant, String> constantNames;
 
   Namer(this.compiler)
       : globals = new Map<Element, String>(),
         usedGlobals = new Map<String, int>(),
         shortPrivateNameOwners = new Map<String, LibraryElement>(),
         constantNames = new Map<Constant, String>();
 
-  final String CURRENT_ISOLATE = @'$';
+  final String CURRENT_ISOLATE = r'$';
   final String ISOLATE = 'Isolate';
-  final String ISOLATE_PROPERTIES = @"$isolateProperties";
+  final String ISOLATE_PROPERTIES = r"$isolateProperties";
   /** Some closures must contain their name. The name is stored in
     * [STATIC_CLOSURE_NAME_NAME]. */
-  final String STATIC_CLOSURE_NAME_NAME = @'$name';
+  final String STATIC_CLOSURE_NAME_NAME = r'$name';
   static const SourceString CLOSURE_INVOCATION_NAME =
       Compiler.CALL_OPERATOR_NAME;
 
   String constantName(Constant constant) {
     // In the current implementation it doesn't make sense to give names to
     // function constants since the function-implementation itself serves as
     // constant and can be accessed directly.
     assert(!constant.isFunction());
     String result = constantNames[constant];
     if (result === null) {
@@ skipping 75 matching lines @@
     assert(!name.isPrivate());
     return '${name.slowToString()}\$$arity';
   }
 
   String instanceMethodInvocationName(LibraryElement lib, SourceString name,
                                       Selector selector) {
     // TODO(floitsch): mangle, while preserving uniqueness.
     StringBuffer buffer = new StringBuffer();
     List<SourceString> names = selector.getOrderedNamedArguments();
     for (SourceString argumentName in names) {
-      buffer.add(@'$');
+      buffer.add(r'$');
       argumentName.printOn(buffer);
     }
     return '${privateName(lib, name)}\$${selector.argumentCount}$buffer';
   }
 
   String instanceFieldName(LibraryElement libraryElement, SourceString name) {
     String proposedName = privateName(libraryElement, name);
     return safeName(proposedName);
   }
 
@@ skipping 158 matching lines @@
   }
 
   String safeName(String name) {
     if (jsReserved.contains(name) || name.startsWith('\$')) {
       name = "\$$name";
       assert(!jsReserved.contains(name));
     }
     return name;
   }
 }