[server] Rename source lcoation columns.

src/plugins/server/kernel_ast.ml

@@ -196,7 +196,7 @@ struct
     in
     let () =
       States.column
-        ~name:"loc"
+        ~name:"sloc"
         ~descr:(Md.plain "Source location")
         ~data:(module Kernel_main.LogSource)
         ~get:(fun (tag, _) -> fst (Printer_tag.loc_of_localizable tag))
@@ -451,7 +451,7 @@ struct
         ~default:false
         ~get:is_eva_analyzed;
       States.column model
-        ~name:"loc"
+        ~name:"sloc"
         ~descr:(Md.plain "Source location")
         ~data:(module Kernel_main.LogSource)
         ~get:(fun kf -> fst (Kernel_function.get_location kf));