Remove ref.is_null type parameter (#1474)

See https://github.com/WebAssembly/reference-types/issues/99.

This change also updates the testsuite, so the spec tests pass too.

In addition, the behavior of `br_table` is no longer different from MVP,
and has a text to confirm this. That is now fixed in `type-checker.cc`
too.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/binary-reader-ir.cc b/src/binary-reader-ir.cc
index e1b41697..0dc9b2b1 100644
--- a/src/binary-reader-ir.cc
+++ b/src/binary-reader-ir.cc
@@ -185,7 +185,7 @@ class BinaryReaderIR : public BinaryReaderNop {
   Result OnTableFillExpr(Index table_index) override;
   Result OnRefFuncExpr(Index func_index) override;
   Result OnRefNullExpr(Type type) override;
-  Result OnRefIsNullExpr(Type type) override;
+  Result OnRefIsNullExpr() override;
   Result OnNopExpr() override;
   Result OnRethrowExpr() override;
   Result OnReturnExpr() override;
@@ -919,8 +919,8 @@ Result BinaryReaderIR::OnRefNullExpr(Type type) {
   return AppendExpr(MakeUnique<RefNullExpr>(type));
 }
 
-Result BinaryReaderIR::OnRefIsNullExpr(Type type) {
-  return AppendExpr(MakeUnique<RefIsNullExpr>(type));
+Result BinaryReaderIR::OnRefIsNullExpr() {
+  return AppendExpr(MakeUnique<RefIsNullExpr>());
 }
 
 Result BinaryReaderIR::OnNopExpr() {