Fix the issue #1033 (#1037)
Fix the issue #1033 (#1037)

* Fix the issue #1033

fix the issue #1033 "converting to ‘const std::unordered_set<std::basic_string<char> >’from initializer"

* Fix the issue #1033

fix the issue #1033 "converting to ‘const std::unordered_set<std::basic_string >’from initializer".

tqchen/tvm,Laurawly/tvm-1,sxjscience/tvm,dmlc/tvm,sxjscience/tvm,Laurawly/tvm-1,Huyuwei/tvm,dmlc/tvm,Laurawly/tvm-1,Huyuwei/tvm,tqchen/tvm,sxjscience/tvm,tqchen/tvm,dmlc/tvm,sxjscience/tvm,dmlc/tvm,tqchen/tvm,Huyuwei/tvm,Huyuwei/tvm,tqchen/tvm,Laurawly/tvm-1,Huyuwei/tvm,tqchen/tvm,sxjscience/tvm,dmlc/tvm,dmlc/tvm,dmlc/tvm,Huyuwei/tvm,dmlc/tvm,Laurawly/tvm-1,tqchen/tvm,tqchen/tvm,sxjscience/tvm,Laurawly/tvm-1,Laurawly/tvm-1,Huyuwei/tvm,sxjscience/tvm,Huyuwei/tvm,sxjscience/tvm,tqchen/tvm,dmlc/tvm,Laurawly/tvm-1,tqchen/tvm,Laurawly/tvm-1,sxjscience/tvm,Huyuwei/tvm,Laurawly/tvm-1