[xamlc] enable for $(Configuration) names like ReleaseProd #14638
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Context: #14591 (comment)
In testing a customer project, I found that using a non-standard
$(Configuration)name likeReleaseProddisables XamlC.In a30e243, we added a check for
$(Configuration)to be exactlyRelease. Let's invert this check to be!= Debug. I also added a test to verify this works.This seems like a better default for customers, as it seems a lot worse for a
ReleaseProdbuild to have XamlC off than aDebugProdbuild to accidentally have XamlC on.Asking around, but the .NET SDK doesn't appear to do anything special for
$(Optimize)and$(DebugSymbols)related to$(Configuration):https://github.com/dotnet/sdk/blob/7d23e9d3e4aad58a5b497d8d91a50ffdf148b238/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.Sdk.props#L46-L54