[doc parsing]: Also do typo correction for
dynamically registered commands. 
// rdar://12381408


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181477 91177308-0d34-0410-b5e6-96231b3b80d8
unbreak buildbot.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181479 91177308-0d34-0410-b5e6-96231b3b80d8
All -Wdocumentation warnings are DefaultIgnore


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181480 91177308-0d34-0410-b5e6-96231b3b80d8