When a bad UTF-8 encoding or bogus escape sequence is encountered in a
string literal, produce a diagnostic pointing at the erroneous character
range, not at the start of the literal.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163459 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed