llvm-project

35627b36 - [clang][LIT] Add LIT "features" for build configs with ICU or iconv

[clang][LIT] Add LIT "features" for build configs with ICU or iconv ... in preparation for `-finput-charset` and `-fexec-charset` tests that rely on the availability of one or the other; however, this does not address the problem of varying `iconv` support of (and names for) character encodings. Co-authored-by: Abhina Sreeskantharajan <Abhina.Sreeskantharajan@ibm.com>