[clang] [clang/AST] Make it possible to use SwiftAttr in type context (PR #108631)

[Erich Keane via cfe-commits]

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@@ -668,12 +668,16 @@ let Class = AttributedType in {
   def : Property<"equivalentType", QualType> {
     let Read = [{ node->getEquivalentType() }];
   }
-  def : Property<"attribute", AttrKind> {
+  def : Property<"attrKind", AttrKind> {
     let Read = [{ node->getAttrKind() }];
   }
+  def : Property<"attribute", Attr> {
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erichkeane wrote:

Is there reason to store both `attribute` and `attrKind` here?  Should we just implement `attrKind` as `attribute.getKind` ?

https://github.com/llvm/llvm-project/pull/108631