Added missing ResizeArray.GetRange

Author: ncave

src/Fable.Transforms/Replacements.fs

@@ -1733,6 +1733,8 @@ let resizeArrays (com: ICompiler) (ctx: Context) r (t: Type) (i: CallInfo) (this
         Helper.CoreCall("Seq", "filter", t, [arg; ar], ?loc=r) |> toArray com t |> Some
     | "AddRange", Some ar, [arg] ->
         Helper.CoreCall("Array", "addRangeInPlace", t, [arg; ar], ?loc=r) |> Some
+    | "GetRange", Some ar, [idx; cnt] ->
+        Helper.CoreCall("Array", "getSubArray", t, [ar; idx; cnt], ?loc=r) |> Some
     | "Contains", Some (MaybeCasted(ar)), [arg] ->
         match ar.Type with
         | Array _ ->

tests/Main/ResizeArrayTests.fs

@@ -131,6 +131,13 @@ let tests =
         li.AddRange [1;2;3]
         equal 3 li.Count
 
+    testCase "ResizeArray.GetRange works" <| fun () ->
+        let li = ResizeArray<_>()
+        li.AddRange [1;2;3]
+        let sub = li.GetRange(1, 2)
+        sub.Count |> equal 2
+        sub.Contains(1) |> equal false
+
     testCase "ResizeArray.Contains works" <| fun () ->
         let li = ResizeArray<_>()
         li.Add("ab")