Merge master to dev16.0#5143

Merged

dsyme merged 4 commits intodev16.0from

merges/master-to-dev16.0

Jun 8, 2018

Commits on Jun 7, 2018

LOC CHECKIN | Microsoft/visualfsharp master | 20180607 (#5130)

v-zbsail
authored and
KevinRansom
committed
Optimize format string parsing (#5121)

vasily-kirichenko
authored and
KevinRansom
committed
update FSComp
dsyme
committed

Commits on Jun 8, 2018

update perf baselines
dsyme
committed