[Format] Add format check for coroutine keywords with negative numbers

Summary:
As a followup to D69144, this diff fixes the coroutine keyword spacing
for co_yield / co_returning negative numbers.

Reviewers: modocache, sammccall, Quuxplusone

Reviewed By: modocache

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69180

Patch by Jonathan Thomas (jonathoma)!

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 9fe7fdc9ce9..74ff5b53149 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -1829,7 +1829,8 @@ private:
     // Use heuristics to recognize unary operators.
     if (PrevToken->isOneOf(tok::equal, tok::l_paren, tok::comma, tok::l_square,
                            tok::question, tok::colon, tok::kw_return,
-                           tok::kw_case, tok::at, tok::l_brace, tok::kw_throw))
+                           tok::kw_case, tok::at, tok::l_brace, tok::kw_throw,
+                           tok::kw_co_return, tok::kw_co_yield))
       return TT_UnaryOperator;
 
     // There can't be two consecutive binary operators.