Fix source locations for inlined and patched functions.

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.
 
 class Printer implements NodeVisitor {
   final bool shouldCompressOutput;
   leg.Compiler compiler;
-  var positionElement;
   leg.CodeBuffer outBuffer;
   int indentLevel = 0;
   bool inForInit = false;
   bool atStatementBegin = false;
   final DanglingElseVisitor danglingElseVisitor;
 
-  Printer(leg.Compiler compiler, this.positionElement)
+  Printer(leg.Compiler compiler)
       : shouldCompressOutput = compiler.enableMinification,
         this.compiler = compiler,
         outBuffer = new leg.CodeBuffer(),
         danglingElseVisitor = new DanglingElseVisitor(compiler);
 
   void spaceOut() {
     if (!shouldCompressOutput) out(" ");
   }
   void lineOut() {
     if (!shouldCompressOutput) out("\n");
@@ skipping 21 matching lines @@
   void outIndent(String str) { indent(); out(str); }
   void outIndentLn(String str) { indent(); outLn(str); }
   void indent() {
     if (!shouldCompressOutput) {
       for (int i = 0; i < indentLevel; i++) out("  ");
     }
   }
 
   void recordSourcePosition(var position) {
     if (position != null) {
-      outBuffer.setSourceLocation(positionElement, position);
+      outBuffer.setSourceLocation(position);
     }
   }
 
   visit(Node node) {
     if (node.sourcePosition != null) outBuffer.beginMappedRange();
     recordSourcePosition(node.sourcePosition);
     node.accept(this);
     recordSourcePosition(node.endSourcePosition);
     if (node.sourcePosition != null) outBuffer.endMappedRange();
   }
@@ skipping 746 matching lines @@
   bool visitFunctionDeclaration(FunctionDeclaration node) => false;
   bool visitLabeledStatement(LabeledStatement node)
       => node.body.accept(this);
   bool visitLiteralStatement(LiteralStatement node) => true;
 
   bool visitExpression(Expression node) => false;
 }
 
 
 leg.CodeBuffer prettyPrint(Node node,
-                           leg.Compiler compiler,
-                           Dynamic positionElement) {
-  Printer printer = new Printer(compiler, positionElement);
+                           leg.Compiler compiler) {
+  Printer printer = new Printer(compiler);
   printer.visit(node);
   return printer.outBuffer;
 }