[clang] [llvm] [mlir] [openmp] [Clang][OpenMP] Switch to __kmpc_parallel_60 with strict parameter (PR #171082)

[Robert Imschweiler via llvm-commits]

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ro-i wrote:

```suggestion
  EXPECT_EQ(Parallel51CI->arg_size(), 10U);
```

https://github.com/llvm/llvm-project/pull/171082