More push/pop support (#2260)

This adds
- `push`/`pop` support for other types: v128 and exnref
- `push`/`pop` support for binaryen.js
  Because binaryen.js follows Binaryen's AST structure, without `pop` in
  binaryen.js, EH instructions cannot be represented in binaryen.js.

1 files changed, 31 insertions, 0 deletions

diff --git a/test/binaryen.js/push-pop.js.txt b/test/binaryen.js/push-pop.js.txt
new file mode 100644
index 000000000..0597780d9
--- /dev/null
+++ b/test/binaryen.js/push-pop.js.txt
@@ -0,0 +1,31 @@
+(module
+ (type $v (func))
+ (func $func (; 0 ;) (type $v)
+  (push
+   (i32.pop)
+  )
+  (push
+   (i64.pop)
+  )
+  (push
+   (f32.pop)
+  )
+  (push
+   (f64.pop)
+  )
+  (push
+   (v128.pop)
+  )
+  (push
+   (exnref.pop)
+  )
+ )
+)
+
+getExpressionInfo(i32.pop) = {"id":37,"type":1}
+getExpressionInfo(i64.pop) = {"id":37,"type":2}
+getExpressionInfo(f32.pop) = {"id":37,"type":3}
+getExpressionInfo(f64.pop) = {"id":37,"type":4}
+getExpressionInfo(v128.pop) = {"id":37,"type":5}
+getExpressionInfo(exnref.pop) = {"id":37,"type":6}
+getExpressionInfo(push) = {"id":36}