fix corner case with collapse_vars & ie8 (#3469)

fixes #3468
2019-10-14 13:34:35 +08:00
parent e8ab0a44b2
commit a39bdb5840
3 changed files with 47 additions and 2 deletions
--- a/lib/scope.js
+++ b/lib/scope.js
@@ -55,6 +55,7 @@ function SymbolDef(scope, orig, init) {
    this.mangled_name = null;
    this.undeclared = false;
    this.id = SymbolDef.next_id++;
+    this.lambda = orig instanceof AST_SymbolLambda;
 }

 SymbolDef.next_id = 1;
@@ -210,6 +211,7 @@ AST_Toplevel.DEFMETHOD("figure_out_scope", function(options) {
            node.thedef = new_def;
            node.reference(options);
        });
+        if (old_def.lambda) new_def.lambda = true;
    }
 });