Fix unused assignment: the value changed at constructorArgNum++ is never used

Signed-off-by: Vincent Potucek <vpotucek@me.com>

Author: Vincent Potucek

spring-context/src/main/java/org/springframework/scripting/config/ScriptBeanDefinitionParser.java

@@ -199,7 +199,7 @@ else if (beanDefinitionDefaults.getDestroyMethodName() != null) {
 				parserContext.getReaderContext().error("Attribute 'customizer-ref' has empty value", element);
 			}
 			else {
-				cav.addIndexedArgumentValue(constructorArgNum++, new RuntimeBeanReference(customizerBeanName));
+				cav.addIndexedArgumentValue(constructorArgNum, new RuntimeBeanReference(customizerBeanName));
 			}
 		}