[clang] [clang] Add `__bf16` Type Support Macros With Literal Suffix Support (PR #134214)

[via cfe-commits]

================
@@ -117,29 +119,34 @@ static void DefineFloatMacros(MacroBuilder &Builder, StringRef Prefix,
   NormMax = PickFP(Sem, "6.5504e+4", "3.40282347e+38",
                    "1.7976931348623157e+308", "1.18973149535723176502e+4932",
                    "8.98846567431157953864652595394501e+307",
+                   "3.38953138925153547590470800371487867e+38",
                    "1.18973149535723176508575932662800702e+4932");
   DenormMin = PickFP(Sem, "5.9604644775390625e-8", "1.40129846e-45",
                      "4.9406564584124654e-324", "3.64519953188247460253e-4951",
                      "4.94065645841246544176568792868221e-324",
+                     "9.18354961579912115600575419704879436e-41",
                      "6.47517511943802511092443895822764655e-4966");
-  int Digits = PickFP(Sem, 3, 6, 15, 18, 31, 33);
-  int DecimalDigits = PickFP(Sem, 5, 9, 17, 21, 33, 36);
+  int Digits = PickFP(Sem, 3, 6, 15, 18, 31, 2, 33);
+  int DecimalDigits = PickFP(Sem, 5, 9, 17, 21, 33, 4, 36);
   Epsilon = PickFP(Sem, "9.765625e-4", "1.19209290e-7",
                    "2.2204460492503131e-16", "1.08420217248550443401e-19",
                    "4.94065645841246544176568792868221e-324",
+                   "7.81250000000000000000000000000000000e-3",
----------------
overmighty wrote:

```suggestion
                   "7.8125e-3",
```

https://github.com/llvm/llvm-project/pull/134214