fix corner case in ie (#5372)

fixes #5370
2022-03-02 05:52:27 +00:00
parent fdbbef2991
commit 104d385ba9
3 changed files with 49 additions and 1 deletions
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -226,7 +226,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
            defun.def_variable(node);
        } else if (node instanceof AST_SymbolLambda) {
            var def = defun.def_function(node, node.name == "arguments" ? undefined : defun);
-            if (options.ie) def.defun = defun.parent_scope.resolve();
+            if (options.ie && node.name != "arguments") def.defun = defun.parent_scope.resolve();
        } else if (node instanceof AST_SymbolLet) {
            var def = scope.def_variable(node);
            if (exported) def.exported = true;