Fix XML deprecation warnings

Author: jketema

cpp/common/src/codingstandards/cpp/Config.qll

@@ -8,20 +8,20 @@ import codingstandards.cpp.exclusions.RuleMetadata
 import codingstandards.cpp.deviations.Deviations
 
 /** A `coding-standards.xml` configuration file (usually generated from an YAML configuration file). */
-class CodingStandardsFile extends XMLFile {
+class CodingStandardsFile extends XmlFile {
   CodingStandardsFile() {
     this.getBaseName() = "coding-standards.xml" and
     // Must be within the users source code.
     exists(this.getRelativePath())
   }
 }
 
-class CodingStandardsConfigSection extends XMLElement {
+class CodingStandardsConfigSection extends XmlElement {
   CodingStandardsConfigSection() { getParent() instanceof CodingStandardsConfig }
 }
 
 /** A "Coding Standards" configuration file */
-class CodingStandardsConfig extends XMLElement {
+class CodingStandardsConfig extends XmlElement {
   CodingStandardsConfig() {
     any(CodingStandardsFile csf).getARootElement() = this and
     this.getName() = "codingstandards"

cpp/common/src/codingstandards/cpp/guideline_recategorizations/GuidelineRecategorizations.qll

@@ -12,7 +12,7 @@ class GuidelineRecategorizations extends CodingStandardsConfigSection {
   GuidelineRecategorizations() { hasName("guideline-recategorizations") }
 }
 
-class GuidelineRecategorization extends XMLElement {
+class GuidelineRecategorization extends XmlElement {
   GuidelineRecategorization() {
     getParent() instanceof GuidelineRecategorizations and
     hasName("guideline-recategorizations-entry")