Update br_on_cast binary and text format (#5734)

The final versions of the br_on_cast and br_on_cast_fail instructions have two
reference type annotations: one for the input type and one for the cast target
type. In the binary format, this is represented as a flags byte followed by two
encoded heap types. Since these instructions have been in flux for a while, do
not attempt to maintain backward compatibility with older versions of the
instructions. Instead, upgrade all of the tests at once to use the new versions
of the instructions. Drop some binary tests of deprecated instruction encodings
that would be more effort to update than they're worth.

1 files changed, 1 insertions, 1 deletions

diff --git a/test/lit/passes/dce_all-features.wast b/test/lit/passes/dce_all-features.wast
index adddfd3cc..47838dbd6 100644
--- a/test/lit/passes/dce_all-features.wast
+++ b/test/lit/passes/dce_all-features.wast
@@ -1421,7 +1421,7 @@
   (func $br_on_cast_fail (result (ref any))
     (block $label$1 (result (ref none))
       ;; Similar to the above, but using br_on_cast_fail.
-      (br_on_cast_fail $label$1 null struct
+      (br_on_cast_fail $label$1 anyref structref
         (unreachable)
       )
       (unreachable)