Cross Reference: /external/clang/test/CXX/class.derived

`Name`	`Date`	`Size`
Up to higher level directory
`class.abstract/`	22-Oct-2020
`class.member.lookup/`	22-Oct-2020
`class.virtual/`	22-Oct-2020
`p1.cpp`	22-Oct-2020	`1.4K`
`p2.cpp`	22-Oct-2020	`229`