[clang] Do not print locations in anonymous tag names. (PR #159592)

[Adrian Prantl via cfe-commits]

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@@ -397,6 +397,8 @@ PrintingPolicy CGDebugInfo::getPrintingPolicy() const {
 
   // Apply -fdebug-prefix-map.
   PP.Callbacks = &PrintCB;
+  // Disable printing of location of an anonymous tag name.
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adrian-prantl wrote:

Can you put the explanation of why we do this into the comment here?

https://github.com/llvm/llvm-project/pull/159592