Bug 35351 no F2 error description for 'invalid character constant'
20030318 type in: char c= 'sdasd' you get wawy line under the incorrect literal but pressing F2 does not bring up an error description, like it does in other cases
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/JavaSourceViewerConfiguration.java
return new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell parent) {
				int shellStyle= SWT.RESIZE;
				int treeStyle= SWT.V_SCROLL | SWT.H_SCROLL;
				return new HierarchyInformationControl(parent, shellStyle, treeStyle);
			}
		};
	}	
	
	/*
	 * @see SourceViewerConfiguration#getInformationPresenter(ISourceViewer)
	 * @since 2.0
	 */
	public IInformationPresenter getInformationPresenter(ISourceViewer sourceViewer) {
		InformationPresenter presenter= new InformationPresenter(getInformationPresenterControlCreator(sourceViewer));
		IInformationProvider provider= new JavaInformationProvider(getEditor());
		presenter.setInformationProvider(provider, IDocument.DEFAULT_CONTENT_TYPE);
		presenter.setInformationProvider(provider, IJavaPartitions.JAVA_DOC);
		presenter.setSizeConstraints(60, 10, true, true);		
		return presenter;
	}
	/**
	 * Returns the outline presenter which will determine and shown
	 * information requested for the current cursor position.
	 *
	 * @param sourceViewer the source viewer to be configured by this configuration
	 * @param doCodeResolve a boolean which specifies whether code resolve should be used to compute the Java element 
	 * @return an information presenter
	 * @since 2.1
	 */