[X86] Add test case for inserting/extracting from shuffled vectors. NFC
[X86] Add test case for inserting/extracting from shuffled vectors. NFC

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@369870 91177308-0d34-0410-b5e6-96231b3b80d8

GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm