diff --git a/tests/fsharp/core/auto-widen/preview/test.bsl b/tests/fsharp/core/auto-widen/preview/test.bsl
index 94ad06d8bc0..f449e09a610 100644
--- a/tests/fsharp/core/auto-widen/preview/test.bsl
+++ b/tests/fsharp/core/auto-widen/preview/test.bsl
@@ -269,9 +269,9 @@ test.fsx(248,51,248,52): typecheck error FS3388: This expression implicitly conv
 
 test.fsx(253,36,253,37): typecheck error FS3388: This expression implicitly converts type 'int' to type 'IComparable'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(256,30,256,39): typecheck error FS3388: This expression implicitly converts type 'uint16[]' to type 'Array'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(256,30,256,39): typecheck error FS3388: This expression implicitly converts type 'uint16 array' to type 'Array'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(258,30,258,38): typecheck error FS3388: This expression implicitly converts type ''a[]' to type 'Array'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(258,30,258,38): typecheck error FS3388: This expression implicitly converts type ''a array' to type 'Array'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(260,36,260,38): typecheck error FS3388: This expression implicitly converts type 'Numerics.BigInteger' to type 'IComparable'. See https://aka.ms/fsharp-implicit-convs.
 
@@ -507,69 +507,69 @@ test.fsx(386,40,386,41): typecheck error FS3389: This expression uses a built-in
 
 test.fsx(386,40,386,41): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(390,28,390,41): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(390,28,390,41): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(390,37,390,38): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(390,37,390,38): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(391,30,392,57): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(391,30,392,57): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(391,39,391,40): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(391,39,391,40): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(393,30,394,56): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(393,30,394,56): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(394,52,394,53): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(394,52,394,53): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(395,30,396,58): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(395,30,396,58): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(396,54,396,55): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(396,54,396,55): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(397,30,398,59): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(397,30,398,59): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(397,39,397,40): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(397,39,397,40): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(399,30,399,59): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(399,30,399,59): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(400,30,400,63): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(400,30,400,63): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(400,59,400,60): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(400,59,400,60): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(401,30,402,63): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(401,30,402,63): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(402,59,402,60): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(402,59,402,60): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(403,30,404,64): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(403,30,404,64): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(403,39,403,40): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(403,39,403,40): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(405,31,405,59): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(405,31,405,59): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(405,44,405,45): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(405,44,405,45): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(406,31,407,60): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(406,31,407,60): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(407,44,407,45): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(407,44,407,45): typecheck error FS3388: This expression implicitly converts type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(408,31,409,61): typecheck error FS3388: This expression implicitly converts type 'int64[]' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
+test.fsx(408,31,409,61): typecheck error FS3388: This expression implicitly converts type 'int64 array' to type 'seq<int64>'. See https://aka.ms/fsharp-implicit-convs.
 
 test.fsx(408,40,408,41): typecheck error FS3389: This expression uses a built-in implicit conversion to convert type 'int' to type 'int64'. See https://aka.ms/fsharp-implicit-convs.
 
@@ -639,4 +639,4 @@ test.fsx(544,14,544,21): typecheck error FS0039: The type 'float64' is not defin
 
 test.fsx(610,25,610,43): typecheck error FS3388: This expression implicitly converts type 'int -> unit' to type 'Action<int>'. See https://aka.ms/fsharp-implicit-convs.
 
-test.fsx(617,18,617,22): typecheck error FS3388: This expression implicitly converts type 'int -> int' to type 'Func<int,int>'. See https://aka.ms/fsharp-implicit-convs.
\ No newline at end of file
+test.fsx(617,18,617,22): typecheck error FS3388: This expression implicitly converts type 'int -> int' to type 'Func<int,int>'. See https://aka.ms/fsharp-implicit-convs.
diff --git a/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.ErrorList.fs b/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.ErrorList.fs
index 846b401b227..eca70a6bd89 100644
--- a/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.ErrorList.fs
+++ b/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.ErrorList.fs
@@ -297,8 +297,8 @@ let x =
 Known type of argument: 'a0 when 'a0: null
 
 Candidates:
- - System.Console.WriteLine(buffer: char[]) : unit
- - System.Console.WriteLine(format: string, [<System.ParamArray>] arg: obj[]) : unit
+ - System.Console.WriteLine(buffer: char array) : unit
+ - System.Console.WriteLine(format: string, [<System.ParamArray>] arg: obj array) : unit
  - System.Console.WriteLine(value: obj) : unit
  - System.Console.WriteLine(value: string) : unit""" ]
         CheckErrorList content (assertExpectedErrorMessages expectedMessages)
diff --git a/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.QuickInfo.fs b/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.QuickInfo.fs
index fa0064792d5..5275c0af762 100644
--- a/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.QuickInfo.fs
+++ b/vsintegration/tests/UnitTests/LegacyLanguageService/Tests.LanguageService.QuickInfo.fs
@@ -310,7 +310,7 @@ Full name: Microsoft.FSharp.Control.Async""".TrimStart().Replace("\r\n", "\n")
                             let y(*MInt[]*) : int []    = [| 1; 2; 3 |]
                             """
         this.AssertQuickInfoContainsAtStartOfMarker(fileContents, "x(*MIntArray1*)", "int array")
-        this.AssertQuickInfoContainsAtStartOfMarker (fileContents, "y(*MInt[]*)", "int[]")
+        this.AssertQuickInfoContainsAtStartOfMarker (fileContents, "y(*MInt[]*)", "int array")
         
     //Verify no quickinfo -- link name string have 
     [<Test>]
@@ -601,7 +601,7 @@ Full name: Microsoft.FSharp.Control.Async""".TrimStart().Replace("\r\n", "\n")
                                 let t = new N.T.M(*Marker*)()"""
         
         this.AssertQuickInfoContainsAtStartOfMarker (fileContents, "M(*Marker*)",
-         "N.T.M() : int[]",
+         "N.T.M() : int array",
          addtlRefAssy = [PathRelativeToTestAssembly( @"XmlDocAttributeWithEmptyComment.dll")])
     
 
@@ -2070,7 +2070,7 @@ query."
              ["type Random =";
               "  new: unit -> unit + 1 overload"
               "  member Next: unit -> int + 2 overloads";  
-              "  member NextBytes: buffer: byte[] -> unit";
+              "  member NextBytes: buffer: byte array -> unit";
               "  member NextDouble: unit -> float"]
             )
 
diff --git a/vsintegration/tests/UnitTests/QuickInfoProviderTests.fs b/vsintegration/tests/UnitTests/QuickInfoProviderTests.fs
index 7d5aa2613fd..0a889d6d19b 100644
--- a/vsintegration/tests/UnitTests/QuickInfoProviderTests.fs
+++ b/vsintegration/tests/UnitTests/QuickInfoProviderTests.fs
@@ -100,7 +100,7 @@ let ShouldShowQuickInfoForGenericParameters() =
             "(extension) System.Collections.Generic.IEnumerable.GroupBy<'TSource,'TKey>(keySelector: System.Func<'TSource,'TKey>) : System.Collections.Generic.IEnumerable<IGrouping<'TKey,'TSource>>
 'TSource is int * string
 'TKey is int");
-         ("Sort", Some "System.Array.Sort<'T>(array: 'T[]) : unit
+         ("Sort", Some "System.Array.Sort<'T>(array: 'T array) : unit
 'T is int");
          ("let test4 x = C().FSharpGenericMethodExplitTypeParams",
           Some