Add pass_if_number_5.xht, and use as a ref for applicable tests

[gsnedders]

[syncbot]

Automatic validation checks of commit 7f7dfd5 passed.

[Ms2ger]

I don't understand why it doesn't complain about a file merge mismatch.

[Ms2ger]

Allegedly, putting references in a top-level directory rather than under a specific spec should work; wanna try that?

[gsnedders]

@Ms2ger It doesn't complain about a file merge mismatch because the files are byte-for-byte identical. Can certainly move files to the top level, though.

[syncbot]

Automatic validation checks of commit 695eb90 passed.

[Ms2ger]

Assuming everything ends up in the right place in the built test suite, r+, but please squash before landing.

[syncbot]

Automatic validation checks of commit edbe519 passed.

[plinss]

Right, that's the point of the merge mismatch error. It's perfectly fine to have multiple copies of a support or reference file in different directories using the same name. The build will only output one copy, but if all the input copies aren't identical, you get the merge mismatch error. This is to allow having tests that use simple relative paths, like 'support/filename.png' work both in the source and output directory structures.