Implement string interpolation up to SSA.

dart/frog/leg/tools/mini_parser.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.
 
 #library('parser');
 
 #import('../elements/elements.dart');
 #import('../scanner/scanner_implementation.dart');
 #import('../scanner/scannerlib.dart');
 #import('../tree/tree.dart');
@@ skipping 87 matching lines @@
 }
 
 Token scan(MySourceFile source) {
   Scanner scanner = new ByteArrayScanner(source.rawText);
   try {
     return scanner.tokenize();
   } catch (MalformedInputException ex) {
     var message = ex.message;
     if (message is !String) message = "unexpected character";
     Token fakeToken = new Token($QUESTION, scanner.charOffset);
-    new MyListener(source).error(message, fakeToken);
+    try {
+      new MyListener(source).error(message, fakeToken);
+    } catch (ParserError ex) {
+      // TODO(ahe): Clean this up, don't throw exceptions.
+      print(ex);
+    }
     throw;
   }
 }
 
 void parseFilesFrom(InputStream input, MyOptions options, Function whenDone) {
   void readLine(String line) {
     stopwatch.start();
     charCount += parseFile(line, options);
     stopwatch.stop();
   }
@@ skipping 145 matching lines @@
 String _GREEN_COLOR = '\u001b[32m';
 String _RED_COLOR = '\u001b[31m';
 String _MAGENTA_COLOR = '\u001b[35m';
 String _NO_COLOR = '\u001b[0m';
 
 class Mock {
   const Mock();
   bool get useColors() => true;
   internalError(message) { throw message.toString(); }
 }