Make RefCast safe by default (#4663)

This prevents new `RefCast` expressions that don't explicitly have their safety
set from getting an unitialized safety value.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/wasm.h b/src/wasm.h
index b8e3d6704..6e8db91c9 100644
--- a/src/wasm.h
+++ b/src/wasm.h
@@ -1460,7 +1460,7 @@ public:
   // Support the unsafe `ref.cast_nop_static` to enable precise cast overhead
   // measurements.
   enum Safety { Safe, Unsafe };
-  Safety safety;
+  Safety safety = Safe;
 
   void finalize();