[clang] [C++20] [Modules] Introduce -fgen-reduced-bmi (PR #85050)

[Chuanqi Xu via cfe-commits]

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@@ -3031,6 +3032,11 @@ defm skip_odr_check_in_gmf : BoolOption<"f", "skip-odr-check-in-gmf",
           "Perform ODR checks for decls in the global module fragment.">>,
   Group<f_Group>;
 
+def gen_reduced_bmi : Flag<["-"], "fgen-reduced-bmi">,
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ChuanqiXu9 wrote:

Done by using `-fmodules-reduce-bmi`

https://github.com/llvm/llvm-project/pull/85050