Add pdf-specific reference images for fill-alpha-pattern.

These capture the current poppler output, (rather than the
ideal output). We're still waiting for poppler to start
using cairo gradients before this test will run through
cleanly. And even with these new reference images, there's
still some translation variance, so the -25 tests still
fail.

1 files changed, 0 insertions, 0 deletions

diff --git a/test/fill-alpha-pattern-pdf-argb32-ref.png b/test/fill-alpha-pattern-pdf-argb32-ref.png
new file mode 100644
index 000000000..d786c86ad
--- /dev/null
+++ b/test/fill-alpha-pattern-pdf-argb32-ref.png