Remove naming conflict with template

src/dynamic-import/script-code-valid.case

@@ -8,7 +8,7 @@ template: syntax/valid
 //- setup
 // This is still valid in script code, and should not be valid for module code
 // https://tc39.github.io/ecma262/#sec-scripts-static-semantics-lexicallydeclarednames
-var x; function x() {}
+var smoosh; function smoosh() {}
 
 //- import
 import('./script-code-valid.js')