[clang] Reapply "[clang] Introduce [[clang::lifetime_capture_by(X)]] (PR #115823)

[Utkarsh Saxena via cfe-commits]

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@@ -1909,6 +1910,19 @@ void TypePrinter::printAttributedAfter(const AttributedType *T,
     OS << " [[clang::lifetimebound]]";
     return;
   }
+  if (T->getAttrKind() == attr::LifetimeCaptureBy) {
+    OS << " [[clang::lifetime_capture_by(";
+    if (auto *attr = dyn_cast_or_null<LifetimeCaptureByAttr>(T->getAttr())) {
+      auto Idents = attr->getArgIdents();
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usx95 wrote:

Done.

https://github.com/llvm/llvm-project/pull/115823