[llvm] [llvm-dlltool] Add ARM64EC target support. (PR #81624)

[Martin Storsjö via llvm-commits]

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@@ -12,6 +12,9 @@ def D_long : JoinedOrSeparate<["--"], "dllname">, Alias<D>;
 def d: JoinedOrSeparate<["-"], "d">, HelpText<"Input .def File">;
 def d_long : JoinedOrSeparate<["--"], "input-def">, Alias<d>;
 
+def n: JoinedOrSeparate<["-"], "n">, HelpText<"Input native .def File on ARM64EC">;
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mstorsjo wrote:

Sorry to be late to the party wrt the review here, but GNU dlltool also has got a `-n` option, corresponding to `--no-delete`. So I think it would be good to make sure that the short form of the option doesn't conflict with GNU dlltool.

https://github.com/llvm/llvm-project/pull/81624