[NFC][TableGen] Adopt NamespaceEmitter in DirectiveEmitter#165600

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

jurahul:nfc_adopt_ns_emitter_in_directive_emitterjurahul/llvm-project:nfc_adopt_ns_emitter_in_directive_emitterCopy head branch name to clipboard