Exclude printLineState() in -Asserts. [-Wunused-function]

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224430 91177308-0d34-0410-b5e6-96231b3b80d8
s/ScheduleKind/SchedKind/ in \param. [-Wdocumentation]

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@224431 91177308-0d34-0410-b5e6-96231b3b80d8