Merge pull request #15923 from hvitved/shared-xml-impl

Properly shared `XML.qll` implementation

java/ql/lib/semmle/code/java/frameworks/spring/SpringBean.qll

@@ -19,7 +19,8 @@ class SpringBean extends SpringXmlElement {
     not this.getNamespace().getUri() = "http://camel.apache.org/schema/spring"
   }
 
-  override string toString() { result = this.getBeanIdentifier() }
+  /** Gets a printable representation of this XML element. */
+  string toString() { result = this.getBeanIdentifier() }
 
   /**
    * Holds if this element is a top-level bean definition.

java/ql/lib/semmle/code/java/frameworks/spring/SpringProperty.qll

@@ -9,7 +9,8 @@ import semmle.code.java.frameworks.spring.SpringValue
 class SpringProperty extends SpringXmlElement {
   SpringProperty() { this.getName() = "property" }
 
-  override string toString() { result = this.getPropertyName() }
+  /** Gets a printable representation of this XML element. */
+  string toString() { result = this.getPropertyName() }
 
   /** Gets the value of the `name` attribute. */
   string getPropertyName() { result = this.getAttributeValue("name") }