=== Before ==== namespace X.Y.Z { class Foo {} } namespace X.K.A { class Bar { void Method(Y.Z.Foo foo) {} } } === Rename namespace X.K.A to X.K.Y === === Result, Y.Z - highlighted === namespace X.Y.Z { class Foo {} } namespace X.K.A { class Bar { void Method(Y.Z.Foo foo) {} } }