Normative: Restore params/body ToString order in new Function (#3288)

Author: nicolo-ribaudo

spec.html

@@ -30224,10 +30224,10 @@ <h1>
               1. Let _parameterSym_ be the grammar symbol |FormalParameters[+Yield, +Await]|.
               1. Let _fallbackProto_ be *"%AsyncGeneratorFunction.prototype%"*.
             1. Let _argCount_ be the number of elements in _parameterArgs_.
-            1. Let _bodyString_ be ? ToString(_bodyArg_).
             1. Let _parameterStrings_ be a new empty List.
             1. For each element _arg_ of _parameterArgs_, do
               1. Append ? ToString(_arg_) to _parameterStrings_.
+            1. Let _bodyString_ be ? ToString(_bodyArg_).
             1. Let _currentRealm_ be the current Realm Record.
             1. Perform ? HostEnsureCanCompileStrings(_currentRealm_, _parameterStrings_, _bodyString_, *false*).
             1. Let _P_ be the empty String.