don't repeat function names in documentation comments; NFC
don't repeat function names in documentation comments; NFC

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@258699 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 15f4113a31c8a82035329bdfc24511cf8f543eea)

apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm