Method addChild

src/main/java/matcher/type/MemberInstance.java:155–163

(T child)

	}

	void addChild(T child) {
		assert child.getCls() != getCls();
		assert child != this;
		assert !parents.contains(child);

		if (children.isEmpty()) children = Util.newIdentityHashSet();

		children.add(child);
	}

	public Set<T> getChildren() {
		return children;