[clang] [Clang][Sema] Print more static_assert exprs (PR #74852)

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@@ -17172,6 +17179,113 @@ static void WriteCharValueForDiagnostic(uint32_t Value, const BuiltinType *BTy,
   }
 }
 
+/// A raw_ostream that clips its output beyond a certain size, inserting a
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cor3ntin wrote:

I this we should move that to llvm/Support - either in raw_ostream.h or a new file

https://github.com/llvm/llvm-project/pull/74852