[clang] [clang] Introduce [[clang::lifetime_capture_by(X)]] (PR #111499)

[Haojian Wu via cfe-commits]

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@@ -1909,6 +1911,12 @@ void TypePrinter::printAttributedAfter(const AttributedType *T,
     OS << " [[clang::lifetimebound]]";
     return;
   }
+  if (T->getAttrKind() == attr::LifetimeCaptureBy) {
+    // FIXME: Print the attribute arguments once we have a way to retrieve these
+    // here.
+    OS << " [[clang::lifetime_capture_by(...)";
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hokein wrote:

nit: it looks like it misses the closing `]]`

https://github.com/llvm/llvm-project/pull/111499