[mips][msa] Make LSA_DESC a parameterizable class.

This way it's possible to share the instruction's description for LSA and
DLSA (to be added).

No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201078 91177308-0d34-0410-b5e6-96231b3b80d8
[CMake] Add dependencies to gtest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201079 91177308-0d34-0410-b5e6-96231b3b80d8
[mips][msa] Update FileCheck prefix in preparation for
 the addition of Mips64 tests.

No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201080 91177308-0d34-0410-b5e6-96231b3b80d8