Auto merge of #70809 - matthiaskrgr:submodule_upd, r=Mark-Simulacrum

submodules: update clippy from 326b2204 to 7907abea

Changes:
````
Rustup to rust-lang/rust#70634
Update clippy_lints/src/types.rs
Update types.rs
Update types.rs
Improve docs for option_option
useless Rc<Rc<T>>, Rc<Box<T>>, Rc<&T>, Box<&T>
Allow let_underscore
Update option_option ui test
Test for ignoring let_underscore_must_use
Downgrade option_option to pedantic
````

Fixes #70709
This commit is contained in:
bors 2020-04-05 16:13:44 +00:00
commit 6387b09153

@ -1 +1 @@
Subproject commit 326b22048a6305d7c918b748be1c081468917ac6
Subproject commit 7907abea272bbf97812683ce03a1ab9c22f0557b