[clang] [Clang][Sema][OpenMP] Allow `num_teams` to accept multiple expressions (PR #99732)

[Johannes Doerfert via cfe-commits]

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@@ -11639,6 +11639,7 @@ def warn_omp_unterminated_declare_target : Warning<
   InGroup<SourceUsesOpenMP>;
 def err_ompx_bare_no_grid : Error<
   "'ompx_bare' clauses requires explicit grid size via 'num_teams' and 'thread_limit' clauses">;
+def err_omp_multi_expr_not_allowed: Error<"only one expression allowed to '%0' clause">;
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jdoerfert wrote:

```suggestion
def err_omp_multi_expr_not_allowed: Error<"only one expression allowed in '%0' clause">;
```

https://github.com/llvm/llvm-project/pull/99732