Bug 64129 Highlight method exit points fail
When the return type is primitive like int or void, this function works well. But if the return type is a class, like Vector, my Eclipse 3M9 just highlights all the occurrences of "Vector" in the file. This function should be smarter.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
/*
		 * @see org.eclipse.swt.events.MouseMoveListener#mouseMove(org.eclipse.swt.events.MouseEvent)
		 */
		public void mouseMove(MouseEvent event) {
			
			if (event.widget instanceof Control && !((Control) event.widget).isFocusControl()) {
				deactivate();
				return;
			}
			
			if (!fActive) {
				if (event.stateMask != fKeyModifierMask)
					return;
				
				fActive= true;
			}
	
			ISourceViewer viewer= getSourceViewer();
			if (viewer == null) {
				deactivate();
				return;
			}
				
			StyledText text= viewer.getTextWidget();
			if (text == null || text.isDisposed()) {
				deactivate();
				return;
			}
				
			if ((event.stateMask & SWT.BUTTON1) != 0 && text.getSelectionCount() != 0) {