Make more use of is128BitVector/is256BitVector in place of getSizeInBits() == 128/256.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172792 91177308-0d34-0410-b5e6-96231b3b80d8
Spelling fix: extened->extended. Trailing whitespace in same function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172793 91177308-0d34-0410-b5e6-96231b3b80d8
Remove support for Tcl test format since nobody uses it


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172794 91177308-0d34-0410-b5e6-96231b3b80d8