ClassCastException: class org.eclipse.jdt.core.dom.AnonymousClassDeclaration cannot be cast to class org.eclipse.jdt.core.dom.TypeDeclaration

Consider this (changed) snippet from `org.eclipse.jdt.internal.ui.text.java.hover.JavadocHover.HoverControlCreator.doCreateInformationControl(Shell)`

where I've added "setVisible" method that disposes control after 5 seconds.
Trying to `` on `dispose()` call below produces error:

```
@Override
public IInformationControl doCreateInformationControl(Shell parent) {
String tooltipAffordanceString= fAdditionalInfoAffordance ? JavaPlugin.getAdditionalInfoAffordanceString() : EditorsUI.getTooltipAffordanceString();
if (BrowserInformationControl.isAvailable(parent)) {
String font= PreferenceConstants.APPEARANCE_JAVADOC_FONT;
iControl= new BrowserInformationControl(parent, font, tooltipAffordanceString) {

@Override
public IInformationControlCreator getInformationPresenterControlCreator() {
return fInformationPresenterControlCreator;
}

@Override
public void setVisible(boolean visible) {
super.setVisible(visible);
if (!visible) {
Display.getCurrent().timerExec(5000, () -> dispose());
}
}
};
```

```
java.lang.ClassCastException: class org.eclipse.jdt.core.dom.AnonymousClassDeclaration cannot be cast to class org.eclipse.jdt.core.dom.TypeDeclaration (org.eclipse.jdt.core.dom.AnonymousClassDeclaration and org.eclipse.jdt.core.dom.TypeDeclaration are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @dddcd91)
at org.eclipse.jdt.internal.ui.text.correction.QuickAssistProcessor.getConvertLambdaToMethodReferenceProposal(QuickAssistProcessor.java:1068)
at org.eclipse.jdt.internal.ui.text.correction.QuickAssistProcessor.getAssists(QuickAssistProcessor.java:395)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor$SafeAssistCollector.safeRun(JavaCorrectionProcessor.java:404)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor$SafeCorrectionProcessorAccess.run(JavaCorrectionProcessor.java:341)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor$SafeCorrectionProcessorAccess.process(JavaCorrectionProcessor.java:330)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.collectAssists(JavaCorrectionProcessor.java:506)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.collectProposals(JavaCorrectionProcessor.java:291)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionProcessor.computeQuickAssistProposals(JavaCorrectionProcessor.java:247)
at org.eclipse.jface.text.quickassist.QuickAssistAssistant$ContentAssistProcessor.computeCompletionProposals(QuickAssistAssistant.java:71)
at org.eclipse.jface.text.contentassist.ContentAssistant$2.lambda$0(ContentAssistant.java:2063)
at java.base/java.util.Collections$SingletonSet.forEach(Collections.java:4905)
at org.eclipse.jface.text.contentassist.ContentAssistant$2.run(ContentAssistant.java:2062)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:2059)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:577)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.lambda$0(CompletionProposalPopup.java:507)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:502)
at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1873)
at org.eclipse.jface.text.quickassist.QuickAssistAssistant.showPossibleQuickAssists(QuickAssistAssistant.java:113)
at org.eclipse.jdt.internal.ui.text.correction.JavaCorrectionAssistant.showPossibleQuickAssists(JavaCorrectionAssistant.java:194)
at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor$AdaptedSourceViewer.doOperation(CompilationUnitEditor.java:201)
at org.eclipse.ui.texteditor.TextOperationAction.lambda$0(TextOperationAction.java:130)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
```