[clang] [clang] Differentiate between identifier and string EnumArgument (PR #68550)

[Alexander Richardson via cfe-commits]

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@@ -886,7 +893,7 @@ def ARMInterrupt : InheritableAttr, TargetSpecificAttr<TargetARM> {
   // MSP430Interrupt's, MipsInterrupt's and AnyX86Interrupt's spellings
   // must match.
   let Spellings = [GCC<"interrupt">];
-  let Args = [EnumArgument<"Interrupt", "InterruptType",
+  let Args = [EnumArgument<"Interrupt", "InterruptType", /*is_string=*/true,
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arichardson wrote:

It appears TableGen now supports named arguments (https://github.com/llvm/llvm-project/commit/91ccbc6c1c4c121935ee4fbfa0db13ad86590a59), probably makes sense to use them here?

https://github.com/llvm/llvm-project/pull/68550