Backed out 3 changesets (bug 896124, bug 784739, bug 894026) for Windows checktest orange on a CLOSED TREE.

Backed out changeset 631b3d5d54f4 (bug 896124)
Backed out changeset 5e1dd28ede5d (bug 894026)
Backed out changeset c10c0a6270ec (bug 784739)