result into int32

Author: cometkim

compiler/core/js_exp_make.ml

@@ -1608,7 +1608,7 @@ let unchecked_int32_mul ?comment e1 e2 : J.expression =
 let int32_pow ?comment (e1 : t) (e2 : t) : J.expression =
   match (e1.expression_desc, e2.expression_desc) with
   | Number (Int {i = i1}), Number (Int {i = i2}) ->
-    int ?comment (Ext_int.int32_pow i1 i2)
+    to_int32 (int ?comment (Ext_int.int32_pow i1 i2))
   | _ -> {comment; expression_desc = Bin (Pow, e1, e2)}
 
 let rec int32_bxor ?comment (e1 : t) (e2 : t) : J.expression =

compiler/core/js_op.ml

@@ -106,7 +106,7 @@ type int_op =
   (* x / y | 0 *)
   | Mod
   (* x  % y *)
-  | Pow
+  | Pow (* x ** y | 0 *)
 
 (* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators#Bitwise_operators
    {[