[clang] [clang-repl] Lay the basic infrastructure for pretty printing of types (PR #148701)

[Vassil Vassilev via cfe-commits]

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@@ -416,6 +416,8 @@ Interpreter::Interpreter(std::unique_ptr<CompilerInstance> Instance,
         return;
       }
   }
+
+  ValuePrintingInfo.resize(4);
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vgvassilev wrote:

It was a `std::vector` of a predefined elements. I removed this by switching to a `std::array`. Good catch!

https://github.com/llvm/llvm-project/pull/148701