Fix issue 345 by avoiding duplicates in the list of escaping labels...

src/parser.cc

Index: src/parser.cc
===================================================================
--- src/parser.cc	(revision 2461)
+++ src/parser.cc	(working copy)
@@ -2367,7 +2367,7 @@
       result = NEW(TryFinally(try_block, finally_block));
       // Add the jump targets of the try block and the catch block.
       for (int i = 0; i < collector.targets()->length(); i++) {
-        catch_collector.targets()->Add(collector.targets()->at(i));
+        catch_collector.AddTarget(collector.targets()->at(i));
       }
       result->set_escaping_targets(catch_collector.targets());
     }