fix corner case in reduce_vars (#4219)

fixes #4218
2020-10-14 00:58:04 +01:00
parent 9f8106e1d8
commit 7f35d9cee0
2 changed files with 25 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -993,6 +993,7 @@ merge(Compressor.prototype, {
                    return node.value;
                };
                d.fixed.assigns = [ node ];
+                if (node.name instanceof AST_SymbolConst && d.redefined()) d.single_use = false;
            } else {
                d.fixed = false;
            }