fix corner case in `keep_fargs` (#3620)

fixes #3619

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/compress.js b/lib/compress.js
index 284b79ad..2c60a9b6 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -5173,8 +5173,7 @@ merge(Compressor.prototype, {
             && !fn.uses_arguments
             && !fn.pinned()) {
             var pos = 0, last = 0;
-            var drop_fargs = exp === fn && compressor.drop_fargs(fn, self)
-                && (!fn.name || !fn.name.definition().recursive_refs);
+            var drop_fargs = exp === fn && !fn.name && compressor.drop_fargs(fn, self);
             var side_effects = [];
             for (var i = 0; i < self.args.length; i++) {
                 var trim = i >= fn.argnames.length;