Rollup merge of #84661 - pierwill:patch-1, r=jackh726

Remove extra word in `rustc_mir` docs

Changes "is includes" to "includes" in `rustc_mir::borrow_check::type_check::type_check`.

Author: jackh726

compiler/rustc_mir/src/borrow_check/type_check/mod.rs

@@ -97,7 +97,7 @@ mod relate_tys;
 
 /// Type checks the given `mir` in the context of the inference
 /// context `infcx`. Returns any region constraints that have yet to
-/// be proven. This result is includes liveness constraints that
+/// be proven. This result includes liveness constraints that
 /// ensure that regions appearing in the types of all local variables
 /// are live at all points where that local variable may later be
 /// used.