Pretty-printer: Paper over an ambiguity between line table entries
and tagged mdnodes.

fixes http://llvm.org/bugs/show_bug.cgi?id=21131

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218885 91177308-0d34-0410-b5e6-96231b3b80d8
Remove an extra whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218886 91177308-0d34-0410-b5e6-96231b3b80d8