Back out 4 changesets (bug 1030446) on suspicion of setting up random patches to break asmjs tests on Android Armv6
CLOSED TREE

Backed out changeset 4bc102bd4067 (bug 1030446)
Backed out changeset c11c8733e76a (bug 1030446)
Backed out changeset addc1a7459a7 (bug 1030446)
Backed out changeset 457b38b8094c (bug 1030446)