Sym proto lookup only checks depth on sym objs.
Sym proto lookup only checks depth on sym objs.

lijunsong/LambdaS5,lijunsong/LambdaS5,lijunsong/LambdaS5,brownplt/LambdaS5,brownplt/LambdaS5,logchi/LambdaS5,logchi/LambdaS5,logchi/LambdaS5,brownplt/LambdaS5