Move mixed blocks to beta and update tests

ocaml/testsuite/tests/mixed-blocks/constructor_args.ml

@@ -1,5 +1,5 @@
 (* TEST
-   flags = "-extension layouts_alpha";
+   flags = "-extension layouts_beta";
    flambda2;
    {
    native;

ocaml/testsuite/tests/mixed-blocks/generate_mixed_blocks_code.ml

@@ -558,7 +558,7 @@ let main n ~bytecode =
     List.iter2 values (List.tl values @ [ List.hd values]) ~f
   in
   line {|(* TEST
- flags = "-extension layouts_alpha";|};
+ flags = "-extension layouts_beta";|};
   if bytecode then (
     line {| bytecode;|};
   ) else (

ocaml/testsuite/tests/mixed-blocks/generated_byte_test.ml

@@ -1,5 +1,5 @@
 (* TEST
- flags = "-extension layouts_alpha";
+ flags = "-extension layouts_beta";
  bytecode;
 *)
 (** This is code generated by [generate_mixed_blocks_code.ml]. *)

ocaml/testsuite/tests/mixed-blocks/generated_native_test.ml

@@ -1,5 +1,5 @@
 (* TEST
- flags = "-extension layouts_alpha";
+ flags = "-extension layouts_beta";
  flambda2;
  native;
 *)

ocaml/testsuite/tests/mixed-blocks/hash.ml

@@ -1,5 +1,5 @@
 (* TEST
- flags = "-extension layouts_alpha";
+ flags = "-extension layouts_beta";
  flambda2;
  {
    native;

ocaml/testsuite/tests/mixed-blocks/recursive_mixed_blocks.ml

@@ -1,5 +1,5 @@
 (* TEST
- flags = "-extension layouts_alpha";
+ flags = "-extension layouts_beta";
  flambda2;
  {
    native;

ocaml/testsuite/tests/mixed-blocks/test_mixed_blocks.ml

@@ -1,10 +1,10 @@
 (* TEST
  flambda2;
  {
-   flags = "-extension layouts_alpha";
+   flags = "-extension layouts_beta";
    native;
  }{
-   flags = "-extension layouts_alpha";
+   flags = "-extension layouts_beta";
    bytecode;
  }
 *)

ocaml/testsuite/tests/mixed-blocks/test_printing.ml

@@ -1,5 +1,5 @@
 (* TEST
- flags = "-extension layouts_alpha";
+ flags = "-extension layouts_beta";
  expect;
 *)
 

ocaml/testsuite/tests/mixed-blocks/typing_recursive_mixed_blocks.ml

@@ -1,5 +1,5 @@
 (* TEST
- flags = "-extension layouts_alpha";
+ flags = "-extension layouts_beta";
  expect;
 *)
 

ocaml/testsuite/tests/typing-layouts-bits32/basics_beta.ml

@@ -1,6 +1,11 @@
 (* TEST
-   flags = "-extension layouts_beta";
-   expect;
+   {
+    flags = "-extension layouts_alpha";
+    expect;
+   }{
+    flags = "-extension layouts_beta";
+    expect;
+   }
 *)
 
 (* We should move these back into [basics.ml] once
@@ -18,61 +23,34 @@ type ('a : bits32) t_bits32_id = 'a
 
 type t5_1 = { x : t_bits32 };;
 [%%expect{|
-Line 1, characters 0-28:
-1 | type t5_1 = { x : t_bits32 };;
-    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed records.
-       You must enable -extension layouts_alpha to use this feature.
+type t5_1 = { x : t_bits32; }
 |}];;
 
-(* CR layouts v5: this should work *)
 type t5_2 = { y : int; x : t_bits32 };;
 [%%expect{|
-Line 1, characters 0-37:
-1 | type t5_2 = { y : int; x : t_bits32 };;
-    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed records.
-       You must enable -extension layouts_alpha to use this feature.
+type t5_2 = { y : int; x : t_bits32; }
 |}];;
 
-(* CR layouts: this runs afoul of the mixed block restriction, but should work
-   once we relax that. *)
 type t5_2' = { y : string; x : t_bits32 };;
 [%%expect{|
-Line 1, characters 0-41:
-1 | type t5_2' = { y : string; x : t_bits32 };;
-    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed records.
-       You must enable -extension layouts_alpha to use this feature.
+type t5_2' = { y : string; x : t_bits32; }
 |}];;
 
 type t5_4 = A of t_bits32;;
 [%%expect{|
-Line 1, characters 12-25:
-1 | type t5_4 = A of t_bits32;;
-                ^^^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+type t5_4 = A of t_bits32
 |}];;
 
 type t5_5 = A of int * t_bits32;;
 [%%expect{|
-Line 1, characters 12-31:
-1 | type t5_5 = A of int * t_bits32;;
-                ^^^^^^^^^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+type t5_5 = A of int * t_bits32
 |}];;
 
 type ('a : bits32) t5_7 = A of int
 type ('a : bits32) t5_8 = A of 'a;;
 [%%expect{|
 type ('a : bits32) t5_7 = A of int
-Line 2, characters 26-33:
-2 | type ('a : bits32) t5_8 = A of 'a;;
-                              ^^^^^^^
-Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+type ('a : bits32) t5_8 = A of 'a
 |}]
 
 (* not allowed: value in flat suffix *)
@@ -93,20 +71,12 @@ type t11_1 = ..
 type t11_1 += A of t_bits32;;
 [%%expect{|
 type t11_1 = ..
-Line 3, characters 14-27:
-3 | type t11_1 += A of t_bits32;;
-                  ^^^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+type t11_1 += A of t_bits32
 |}]
 
 type t11_1 += B of int32#;;
 [%%expect{|
-Line 1, characters 14-25:
-1 | type t11_1 += B of int32#;;
-                  ^^^^^^^^^^^
-Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+type t11_1 += B of int32#
 |}]
 
 type ('a : bits32) t11_2 = ..
@@ -118,11 +88,7 @@ type 'a t11_2 += B of 'a;;
 [%%expect{|
 type ('a : bits32) t11_2 = ..
 type 'a t11_2 += A of int
-Line 5, characters 17-24:
-5 | type 'a t11_2 += B of 'a;;
-                     ^^^^^^^
-Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+type 'a t11_2 += B of 'a
 |}]
 
 (* not allowed: value in flat suffix *)

ocaml/testsuite/tests/typing-layouts-bits32/parsing.ml

@@ -20,7 +20,7 @@ Line 1, characters 9-20:
 1 | type t = C of int32#;;
              ^^^^^^^^^^^
 Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+       You must enable -extension layouts_beta to use this feature.
 |}];;
 
 type t = C : int32# -> t;;
@@ -29,7 +29,7 @@ Line 1, characters 9-24:
 1 | type t = C : int32# -> t;;
              ^^^^^^^^^^^^^^^
 Error: The enabled layouts extension does not allow for mixed constructors.
-       You must enable -extension layouts_alpha to use this feature.
+       You must enable -extension layouts_beta to use this feature.
 |}];;
 
 (* int32# works as an argument to normal type constructors, not just