[clang] Rework the printing of attributes (PR #87281)

[Erich Keane via cfe-commits]

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@@ -129,11 +118,13 @@ namespace {
                                 const TemplateParameterList *Params);
     void printTemplateArguments(llvm::ArrayRef<TemplateArgumentLoc> Args,
                                 const TemplateParameterList *Params);
-
-    inline void prettyPrintAttributes(Decl *D) {
-      prettyPrintAttributes(D, Out);
-    }
-
+    enum class AttrPosAsWritten {
+      Unknown = 0,
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erichkeane wrote:

'Unknown' is likely to happen with 'implicit' attributes.  Perhaps the 'CanPrintOnLeft' is worth keeping so that we can aggressively print those on the left? 

https://github.com/llvm/llvm-project/pull/87281