[test/Object, obj2yaml] - Move test cases from test/Object and cleanup.

[test/Object, obj2yaml] - Move test cases from test/Object and cleanup.

test/Object is not correct place to have tests that check obj2yaml
functionality, because we have test/tools/obj2yaml folder for that.

In this patch I merged a few test cases with their YAMLs from Inputs
folder, converted one of binary inputs and moved them to
tools/obj2yaml folder.

There are still another tests that might need the same, so it is initial step.

Differential revision: https://reviews.llvm.org/D64555

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@365891 91177308-0d34-0410-b5e6-96231b3b80d8