Updated MIR with UserAssertTy in mir-opt tests.

Author: davidtwco

src/test/mir-opt/basic_assignment.rs

@@ -23,6 +23,8 @@
 // tend to be absent in simple code, so subtle breakage in them can
 // leave a quite hard-to-find trail of destruction.
 
+// ignore-tidy-linelength
+
 fn main() {
     let nodrop_x = false;
     let nodrop_y;
@@ -46,6 +48,7 @@ fn main() {
 //         _2 = move _3;
 //         StorageDead(_3);
 //         StorageLive(_4);
+//         UserAssertTy(Canonical { variables: Slice([]), value: std::option::Option<std::boxed::Box<u32>> }, _4);
 //         _4 = std::option::Option<std::boxed::Box<u32>>::None;
 //         StorageLive(_5);
 //         StorageLive(_6);

src/test/mir-opt/nll/reborrow-basic.rs

@@ -28,9 +28,9 @@ fn main() {
 
 // END RUST SOURCE
 // START rustc.main.nll.0.mir
-// | '_#7r    | {bb0[6..=14]}
+// | '_#7r    | {bb0[4], bb0[8..=17]}
 // ...
-// | '_#9r    | {bb0[11..=14]}
+// | '_#9r    | {bb0[10], bb0[14..=17]}
 // ...
 // let _2: &'_#7r mut i32;
 // ...