17 <bold>val y</bold> = b.foo (in test(A, B,…))
17 	val y = <bold>b.foo</bold> (in test(A, B,…))
3 		return <bold>5</bold>;
8 		override <bold>val foo</bold> = 2 (in B)
8 			override val foo = <bold>2</bold> (in B.foo)
12 		override <bold>val foo</bold> = 3 (in C)
12 			override val foo = <bold>3</bold> (in C.foo)
