git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211016 91177308-0d34-0410-b5e6-96231b3b80d8
given in the Unicode spec That is, replace every maximal subpart of an ill-formed subsequence with one U+FFFD. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211015 91177308-0d34-0410-b5e6-96231b3b80d8
This is required to use them in TableGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173923 91177308-0d34-0410-b5e6-96231b3b80d8