Fix catch parsing (#2428)

- When a catch body is a block, call its `finalize` function with the
  correct type
- Don't create a block when there's one instruction in a catch body
- Remove `makeCatch` from gen-s-parser.py; it's not necessary
- Fix a test case that has a `catch` without `try`

1 files changed, 1 insertions, 1 deletions

diff --git a/src/wasm-s-parser.h b/src/wasm-s-parser.h
index c7d43b581..924c1d968 100644
--- a/src/wasm-s-parser.h
+++ b/src/wasm-s-parser.h
@@ -224,7 +224,7 @@ private:
   Expression* makeBreakTable(Element& s);
   Expression* makeReturn(Element& s);
   Expression* makeTry(Element& s);
-  Expression* makeCatch(Element& s);
+  Expression* makeCatch(Element& s, Type type);
   Expression* makeThrow(Element& s);
   Expression* makeRethrow(Element& s);
   Expression* makeBrOnExn(Element& s);