Call the proper prepareExecute() to not create a second CallTarget for the same RubyRootNode

Author: eregon

src/main/java/org/truffleruby/language/loader/RequireNode.java

@@ -30,7 +30,6 @@
 import org.truffleruby.interop.TranslateInteropExceptionNode;
 import org.truffleruby.language.RubyConstant;
 import org.truffleruby.language.RubyContextNode;
-import org.truffleruby.language.RubyRootNode;
 import org.truffleruby.language.WarningNode;
 import org.truffleruby.language.constants.GetConstantNode;
 import org.truffleruby.language.control.RaiseException;
@@ -234,12 +233,10 @@ private boolean parseAndCall(String feature, String expandedPath) {
                 getLanguage().parsingRequestParams.set(null);
             }
 
-            final RubyRootNode rootNode = RubyRootNode.of(rootCallTarget);
-
             final CodeLoader.DeferredCall deferredCall = getContext().getCodeLoader().prepareExecute(
+                    rootCallTarget,
                     ParserContext.TOP_LEVEL,
                     DeclarationContext.topLevel(getContext()),
-                    rootNode,
                     null,
                     coreLibrary().mainObject);