[InstallAPI] Call DenseMap::find without constructing std::string (NFC)#115260

kazutakahirata merged 1 commit intollvm:mainllvm/llvm-project:mainfrom

kazutakahirata:cleanup_001_heterogenous_InstallAPIkazutakahirata/llvm-project:cleanup_001_heterogenous_InstallAPICopy head branch name to clipboard