added predicates in the AndroidManifest library and adjusted tests

java/ql/lib/semmle/code/xml/AndroidManifest.qll

@@ -18,6 +18,16 @@ class AndroidManifestXmlFile extends XMLFile {
    * Gets the top-level `<manifest>` element in this Android manifest file.
    */
   AndroidManifestXmlElement getManifestElement() { result = this.getAChild() }
+
+  /**
+   * Holds if this Android manifest file is located in a build directory.
+   */
+  predicate isInBuildDirectory() {
+    exists(AndroidManifestXmlFile file |
+      file = this.getFile() and
+      file.getRelativePath().matches("%build%")
+    )
+  }
 }
 
 /**
@@ -51,6 +61,23 @@ class AndroidApplicationXmlElement extends XMLElement {
    * Gets a component child element of this `<application>` element.
    */
   AndroidComponentXmlElement getAComponentElement() { result = this.getAChild() }
+
+  /**
+   * Holds if this application element has the attribute `android:debuggable` set to `true`.
+   */
+  predicate isDebuggable() {
+    exists(AndroidXmlAttribute attr |
+      this.getAnAttribute() = attr and
+      attr.getName() = "debuggable" and
+      attr.getValue() = "true"
+    )
+  }
+
+  /**
+   * Overrides the getFile() predicate of the XMLElement class to get the
+   * AndroidManifest.xml file itself.
+   */
+  override AndroidManifestXmlFile getFile() { result = super.getFile() }
 }
 
 /**