clarify language feature list (#8289)

Author: dsyme

src/fsharp/LanguageFeatures.fs

@@ -55,11 +55,11 @@ type LanguageVersion (specifiedVersionAsString) =
             // F# 5.0
             LanguageFeature.FixedIndexSlice3d4d, languageVersion50
             LanguageFeature.FromEndSlicing, languageVersion50
+            LanguageFeature.DotlessFloat32Literal, languageVersion50
 
             // F# preview
             LanguageFeature.NameOf, previewVersion
             LanguageFeature.OpenStaticClasses, previewVersion
-            LanguageFeature.DotlessFloat32Literal, languageVersion50
             LanguageFeature.PackageManagement, previewVersion
         ]