Cross Reference: /external/libcxx/test/std/strings/string.view/string.view.modifiers

`Name`	`Date`	`Size`
Up to higher level directory
`clear.pass.cpp`	05-Oct-2017	`1.4K`
`remove_prefix.pass.cpp`	05-Oct-2017	`1.7K`
`remove_suffix.pass.cpp`	05-Oct-2017	`1.7K`
`swap.pass.cpp`	05-Oct-2017	`1.6K`