llvm-project

e4ebeac8 - [MCP][NFC] Cleanup and prepare to preserve frame-setup/destroy (#186240)

[MCP][NFC] Cleanup and prepare to preserve frame-setup/destroy (#186240) This mixes renames, removing redundant code, avoiding `else`-after-`return`, etc. with factoring out the `isNeverRedundant` concept. Change-Id: I43a62a9415019cdd63c68fd3b915ebb7505d317a