Build LSAN suppressions into the test binaries.

Build LSAN suppressions into the test binaries.

This way you don't need to set LSAN_SUPPRESSIONS in your environment...
sort of foolproof this way.

I _think_ the strdup() business from skia:2916 is actually rooted in
libfontconfig, so one suppression should cover both old ones.

I'll leave the file empty until I clean up mention of it in bot recipes.

BUG=skia:2916
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2295153003

CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-ASAN-Trybot

Review-Url: https://codereview.chromium.org/2295153003