[clang] [clang] Generate note on declaration for nodiscard-related attributes (PR #112289)

[Yihe Li via cfe-commits]

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@@ -9290,6 +9290,8 @@ def warn_unused_result_typedef_unsupported_spelling : Warning<
 def warn_unused_volatile : Warning<
   "expression result unused; assign into a variable to force a volatile load">,
   InGroup<DiagGroup<"unused-volatile-lvalue">>;
+def note_nodiscard_specified_here : Note<
----------------
Mick235711 wrote:

That note currently reads:
```
def note_availability_specified_here : Note<
  "%0 has been explicitly marked "
  "%select{unavailable|deleted|deprecated}1 here">;
```
Currently, this is the combined note used for unavailable, deleted, and deprecated, and the flavor is chosen by a number (0/1/2) passed as the second argument. Probably, if we want to reuse this, that should be changed to a string parameter?


https://github.com/llvm/llvm-project/pull/112289