C++: Fix exception handling for '__try __except'.

cpp/ql/lib/semmle/code/cpp/ir/implementation/raw/internal/TranslatedStmt.qll

@@ -344,7 +344,7 @@ class TranslatedTryStmt extends TranslatedStmt {
     result = getHandler(0).getFirstInstruction()
   }
 
-  private TranslatedHandler getHandler(int index) {
+  private TranslatedStmt getHandler(int index) {
     result = getTranslatedStmt(stmt.getHandlerStmt(index))
   }