Louis Dionne f06090243d [libc++] Use LLVM 11 instead of trunk on build bots ...

Somehow the snapshot of LLVM trunk we use was seeing failures.

2020-09-14 15:12:13 -04:00

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buildbot

[libc++] Use LLVM 11 instead of trunk on build bots

2020-09-14 15:12:13 -04:00