[clang-tools-extra] [clangd] Add inlay hints for default function arguments (PR #95712)

[Nathan Ridge via cfe-commits]

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@@ -1681,6 +1681,15 @@ enum class InlayHintKind {
   /// This is a clangd extension.
   BlockEnd = 4,
 
+  /// An inlay hint that is for a default argument.
+  ///
+  /// An example of a parameter hint for a default argument:
+  ///    void foo(bool A = true);
+  ///    foo(^);
+  /// Adds an inlay hint "A = true".
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HighCommander4 wrote:

Update comment to `A: true`

https://github.com/llvm/llvm-project/pull/95712