sammccall added a comment.
The intent here is that `user-defined-string-literal-chunk := STRING_LITERAL`
only matches when there's a ud-suffix. And `string-literal-chunk :=
STRING_LITERAL` only matches when there isn't.
(e.g. with a rule guard, which we don't have implemented)
If this was happen
hokein added inline comments.
Comment at: clang-tools-extra/pseudo/lib/cxx.bnf:716
string-literal := string-literal-chunk
-string-literal := string-literal string-literal-chunk
+string-literal := string-literal-chunk string-literal
user-defined-literal := user-defined-integer-l
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We accidently define two identical rules for user-defined-string-literal
(one
