Fix Errors.merge performance
Summary: This was broken in {
D7094911}, but (since we don't have that many errors) had no visible impact. We do have many more HH_FIXME's though, but accumulating those actually happened to get broken in exactly the same release by {
D7046657}. It was now fixed in {
D8253515}, revealing the underlying issue (and making --no-load inits take twice as long as they should).
Reviewed By: CatherineGasnier
Differential Revision:
D8384219
fbshipit-source-id:
3fd0e16b07b677fb59d11745d1a7f5b5452f2aba