Rollup merge of #74129 - matklad:rust-analyzer-2020-07-07, r=Mark-Sim…

…ulacrum

⬆️ rust-analyzer

This updates rust-analyzer submodule to the latest release.

I plan to do that every Monday after rust-analyzer release (about 16:00 CET).

This is semi-automated by https://github.com/rust-analyzer/rust-analyzer/pull/5253/files#diff-c06f6a9cbd0ad2421bcc2ddc28805457R77-R100.

Who would be the appropriate person to r? on Mondays?