target method assignment in for loops

Author: enebo

src/main/java/org/jruby/prism/builder/IRBuilderPrism.java

@@ -2204,6 +2204,10 @@ public void receivePreArg(Node node, Variable keywords, int argIndex) {
             Variable v = temp();
             addInstr(new ReceivePreReqdArgInstr(v, keywords, argIndex));
             addInstr(new PutGlobalVarInstr(target.name, v));
+        } else if (node instanceof CallTargetNode target) {
+            Variable v = temp();
+            addInstr(new ReceivePreReqdArgInstr(v, keywords, argIndex));
+            call(temp(), build(target.receiver), target.name, v);
         } else {
             throw notCompilable("Can't build required parameter node", node);
         }