Make compilers agree on source position of thrown errors.

src/prettyprinter.cc

Index: src/prettyprinter.cc
diff --git a/src/prettyprinter.cc b/src/prettyprinter.cc
index 78b73d6add58dfe9aa738e238787011dab6ceb30..df129c49cc67c53e10e30433b7522b6889892c12 100644
--- a/src/prettyprinter.cc
+++ b/src/prettyprinter.cc
@@ -325,7 +325,7 @@ void CallPrinter::VisitCall(Call* node) {
 
 
 void CallPrinter::VisitCallNew(CallNew* node) {
-  bool was_found = !found_ && node->expression()->position() == position_;
+  bool was_found = !found_ && node->position() == position_;
   if (was_found) found_ = true;
   Find(node->expression(), was_found);
   FindArguments(node->arguments());