Make the test even more readable.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@208118 91177308-0d34-0410-b5e6-96231b3b80d8
s/My/Test/ as these classes are for tests.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@208119 91177308-0d34-0410-b5e6-96231b3b80d8
Fix copypaste error.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@208120 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@208121 91177308-0d34-0410-b5e6-96231b3b80d8
Add a test for notifyProgress().

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@208123 91177308-0d34-0410-b5e6-96231b3b80d8
Tests no longer uses getNextInputElement, so make it private.

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@208124 91177308-0d34-0410-b5e6-96231b3b80d8