hubert.reinterpretcast added inline comments.
================
Comment at: lib/Parse/ParseTentative.cpp:542
+ (Tok.is(tok::greatergreater) ||
+ (Tok.is(tok::ellipsis) &&
+ NextToken().isOneOf(tok::greater, tok::greatergreater,
----------------
The change here is primarily for maintainability purposes. This is "morally"
where the ellipsis should be checked for, but the ellipsis that we are looking
for here is going to be consumed as "stray" anyway.
================
Comment at: lib/Parse/ParseTentative.cpp:944
+ (mayHaveTrailingStrayEllipsis ||
+ !(NextToken().is(tok::r_paren) || NextToken().is(tok::comma))))
ConsumeToken();
----------------
The check for what qualifies as "trailing" is not the strongest, but I find it
to be the most straightforward change that should do the job. One alternative
is to track whether an ellipsis was consumed within the current loop iteration.
https://reviews.llvm.org/D33339
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