@Override
	public AnnotationVisitor visitAnnotation(String descriptor, boolean visible) {
		if (cAnnosVisited.add(descriptor))
			return super.visitAnnotation(descriptor, visible);

		detected = true;
		return null;
	}
@return {@code true} if any duplicate annotations were removed.
recaf-core/src/main/java/software/coley/recaf/util/visitors/DuplicateAnnotationRemovingVisitor.java