Bring some semblance of order into Decl.h and Decl.cpp. While at it, fix some typo comments and remove an unused and unimplemented function prototype. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94599 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed