improve false positive detection in `ufuzz` (#4482)

diff --git a/test/ufuzz/index.js b/test/ufuzz/index.js
index e5bf008..23b3a14 100644 (file)
--- a/test/ufuzz/index.js
+++ b/test/ufuzz/index.js
@@ -1710,7 +1710,9 @@ function log(options) {
 
 function sort_globals(code) {
     var globals = sandbox.run_code("throw Object.keys(this).sort();" + code);
-    return globals.length ? "var " + globals.join(",") + ";" + code : code;
+    return globals.length ? "var " + globals.map(function(name) {
+        return name + "=" + name;
+    }).join(",") + ";" + code : code;
 }
 
 function fuzzy_match(original, uglified) {