Added Objective-C @try block parsing.

src/shared/cplusplus/Parser.h

@@ -251,6 +251,9 @@ public:
     bool parseObjCTypeQualifiers(unsigned &type_qualifier);
     bool peekAtObjCContextKeyword(int kind);
     bool parseObjCContextKeyword(int kind, unsigned &in_token);
+    bool parseObjCTryBlockStatement(StatementAST *&node);
+    bool parseObjCCatchClause(ObjCCatchClauseListAST *&node);
+    bool parseObjCFinallyClause(ObjCFinallyClauseAST *&node);
 
     bool lookAtObjCSelector() const;