Add expected failures for send-entity-body-document.htm.

[eefriedman]

Fixes #8157.

[jdm]

This doesn't seem like a useful change right now; the test was disabled because the failures only appeared intermittently on OS X, which makes merging things harder.

[eefriedman]

The tests all fail consistently. They just don't run consistently, which is what causes the intermittent failures.

[jdm]

Yes, that distinction is true. I don't understand the benefit of re-enabling this test while the results are not consistent, however.

[eefriedman]

Whatever, I'll just leave it alone for now.

[Ms2ger]

If these tests don't run consistently, would these annotations make everything finish successfully?

[eefriedman]

They would, I think. (At least, they do in my brief testing.) The test runner ignores annotations for tests which aren't run.