llvm-project

f7985df4 - [clang] NFC: non-type template argument check cleanup (#158515)

[clang] NFC: non-type template argument check cleanup (#158515) This is a follow-up to #134461, reverting some unnecessary changes. This cleans up some checks around the assumption that a pack expansion on the argument side could appear when checking non-type template arguments when handling the pre-C++17 rules, but all of these cases are being handled using the C++17 rules anyway. This reverts those changes and adds an assert confirming these cases are not possible.