Oops, the underline was too short for sphinx to like.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221993 91177308-0d34-0410-b5e6-96231b3b80d8
Add one illustrative class hierarchy as an example in a comment to the VFTableBuilder code

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221996 91177308-0d34-0410-b5e6-96231b3b80d8
Replace weird whitespace symbols with good old spaces

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221997 91177308-0d34-0410-b5e6-96231b3b80d8
Silencing a -Wparentheses warning; NFC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@221998 91177308-0d34-0410-b5e6-96231b3b80d8