Merge pull request dotnet/coreclr#18552 from dotnet-maestro-bot/master-UpdateDependencies
authorWes Haggard <weshaggard@users.noreply.github.com>
Wed, 20 Jun 2018 23:59:20 +0000 (16:59 -0700)
committerGitHub <noreply@github.com>
Wed, 20 Jun 2018 23:59:20 +0000 (16:59 -0700)
Update BuildTools, CoreClr, CoreFx, PgoData to preview1-02920-01, preview1-26620-04, preview1-26620-03, master-20180620-0039, respectively (master)

Commit migrated from https://github.com/dotnet/coreclr/commit/c58c7cf72fce548f74d73f1f0f53be7b81c53119


Trivial merge