disable test for unimplemented stuff leading to a backtrace

test/script/gc.t

@@ -19,31 +19,7 @@
   $ owi script --no-exhaustion reference/proposals/gc/ref_cast.wast
   unknown operator "any.convert_extern"
   [23]
-  $ owi script --no-exhaustion reference/proposals/gc/ref_eq.wast
-  owi: internal error, uncaught exception:
-       File "src/ast/types.ml", line 930, characters 12-18: Assertion failed
-       Raised at Owi__Types.compare_str_type in file "src/ast/types.ml", line 930, characters 12-24
-       Called from Stdlib__Map.Make.add in file "map.ml", line 129, characters 18-33
-       Called from Owi__Assigned.assign_type in file "src/text_to_binary/assigned.ml", line 54, characters 20-53
-       Called from Owi__Syntax.let+ in file "src/utils/syntax.ml", line 9, characters 43-48
-       Called from Owi__Assigned.assign_type in file "src/text_to_binary/assigned.ml", lines 45-55, characters 4-63
-       Called from Stdlib__List.fold_left in file "list.ml", line 123, characters 24-34
-       Called from Owi__Assigned.assign_types in file "src/text_to_binary/assigned.ml", line 88, characters 13-70
-       Called from Owi__Assigned.of_grouped in file "src/text_to_binary/assigned.ml", line 132, characters 13-31
-       Called from Owi__Compile.Text.until_binary in file "src/ast/compile.ml", line 20, characters 13-35
-       Called from Owi__Compile.Text.until_binary_validate in file "src/ast/compile.ml", line 27, characters 13-46
-       Called from Owi__Compile.Text.until_optimize in file "src/ast/compile.ml", line 34, characters 13-55
-       Called from Owi__Compile.Text.until_link in file "src/ast/compile.ml", line 38, characters 13-58
-       Called from Owi__Compile.Text.until_interpret in file "src/ast/compile.ml", line 43, characters 6-64
-       Called from Owi__Script.run.(fun) in file "src/script/script.ml", lines 160-161, characters 10-34
-       Called from Stdlib__List.fold_left in file "list.ml", line 123, characters 24-34
-       Called from Owi__Script.exec in file "src/script/script.ml", line 298, characters 21-56
-       Called from Owi__Syntax.list_iter.(fun) in file "src/utils/syntax.ml", line 18, characters 14-17
-       Called from Stdlib__List.iter in file "list.ml", line 112, characters 12-15
-       Called from Owi__Syntax.list_iter in file "src/utils/syntax.ml", lines 16-23, characters 4-7
-       Called from Cmdliner_term.app.(fun) in file "cmdliner_term.ml", line 24, characters 19-24
-       Called from Cmdliner_eval.run_parser in file "cmdliner_eval.ml", line 35, characters 37-44
-  [125]
+  $ true # TODO: enable again: owi script --no-exhaustion reference/proposals/gc/ref_eq.wast
   $ owi script --no-exhaustion reference/proposals/gc/ref_test.wast
   unknown operator "any.convert_extern"
   [23]