[clang] [lldb] [llvm] [ADT] Mark StringSwitch Cases with 6+ arguments as deprecated. NFC. (PR #163405)

[Nikita Popov via cfe-commits]

================
@@ -110,31 +111,41 @@ class StringSwitch {
     return CasesImpl(Value, {S0, S1, S2, S3, S4});
   }
 
+  LLVM_DEPRECATED("Pass cases in std::initializer_list instead",
+                  "Cases({S0, S1, ...}, Value)")
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nikic wrote:

The second argument to LLVM_DEPRECATED is a fix-it replacement. Use `[[deprecated]]` instead of LLVM_DEPRECATED if you cannot provide a valid fix-it. We should really rename this macro.

https://github.com/llvm/llvm-project/pull/163405