Add lambda support stubs for core-tests-hostdex

This is the equivalent of commit
35eb86d88d048c5010ca406a8d543a54b84ca7b8 but for the
core-tests-hostdex library.

It is unclear right now what needs a .class form of a
hostdex library. It seems counter-intuitive and there
appear to be no obvious direct dependencies.

Bug: 27188132
Bug: 26753820
Bug: 26604040
Change-Id: If2b0ba6e2a8f8ddfa8212f7a00af900ddb9c101d
1 file changed