[clang] [clang-repl] Lay the foundation of pretty printing for C. (PR #89811)

[Vassil Vassilev via cfe-commits]

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@@ -269,7 +267,10 @@ const char *const Runtimes = R"(
     void __clang_Interpreter_SetValueCopyArr(const T (*Src)[N], void* Placement, unsigned long Size) {
       __clang_Interpreter_SetValueCopyArr(Src[0], Placement, Size);
     }
+    extern "C"
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vgvassilev wrote:

Done.

https://github.com/llvm/llvm-project/pull/89811