Rewrite test/Integer tests to use FileCheck instead of grep


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179047 91177308-0d34-0410-b5e6-96231b3b80d8
Remove is64BitLoadCommand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179048 91177308-0d34-0410-b5e6-96231b3b80d8
Template the MachO types over the word size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179051 91177308-0d34-0410-b5e6-96231b3b80d8