Use CompletionItemKinds named tuple instead of literals

This makes it easier to follow the code, no functional change.

Author: fredrikekre

src/requests/completions.jl

@@ -284,28 +284,28 @@ end
 function _completion_kind(b)
     if b isa StaticLint.Binding
         if b.type == StaticLint.CoreTypes.String
-            return 1
+            return CompletionItemKinds.Text
         elseif b.type == StaticLint.CoreTypes.Function
-            return 2
+            return CompletionItemKinds.Method
         elseif b.type == StaticLint.CoreTypes.Module
-            return 9
+            return CompletionItemKinds.Module
         elseif b.type == Int || b.type == StaticLint.CoreTypes.Float64
-            return 12
+            return CompletionItemKinds.Value
         elseif b.type == StaticLint.CoreTypes.DataType
-            return 22
+            return CompletionItemKinds.Struct
         else
-            return 13
+            return CompletionItemKinds.Enum
         end
     elseif b isa SymbolServer.ModuleStore || b isa SymbolServer.VarRef
-        return 9
+        return CompletionItemKinds.Module
     elseif b isa SymbolServer.MethodStore
-        return 2
+        return CompletionItemKinds.Method
     elseif b isa SymbolServer.FunctionStore
-        return 3
+        return CompletionItemKinds.Function
     elseif b isa SymbolServer.DataTypeStore
-        return 22
+        return CompletionItemKinds.Struct
     else
-        return 6
+        return CompletionItemKinds.Variable
     end
 end