diff --git a/src/test/mir-opt/instrument_coverage/rustc.bar.InstrumentCoverage.diff b/src/test/mir-opt/instrument_coverage/rustc.bar.InstrumentCoverage.diff
index 1e64379aa0e4b..273d045a8dd8f 100644
--- a/src/test/mir-opt/instrument_coverage/rustc.bar.InstrumentCoverage.diff
+++ b/src/test/mir-opt/instrument_coverage/rustc.bar.InstrumentCoverage.diff
@@ -1,13 +1,13 @@
 - // MIR for `bar` before InstrumentCoverage
 + // MIR for `bar` after InstrumentCoverage
-  
+
   fn bar() -> bool {
       let mut _0: bool;                    // return place in scope 0 at $DIR/instrument_coverage.rs:18:13: 18:17
 +     let mut _1: ();                      // in scope 0 at $DIR/instrument_coverage.rs:18:1: 20:2
-  
+
       bb0: {
 +         StorageLive(_1);                 // scope 0 at $DIR/instrument_coverage.rs:18:1: 20:2
-+         _1 = const std::intrinsics::count_code_region(const 0u32) -> bb2; // scope 0 at $DIR/instrument_coverage.rs:18:1: 20:2
++         _1 = const std::intrinsics::count_code_region(const 0_u32) -> bb2; // scope 0 at $DIR/instrument_coverage.rs:18:1: 20:2
 +                                          // ty::Const
 +                                          // + ty: unsafe extern "rust-intrinsic" fn(u32) {std::intrinsics::count_code_region}
 +                                          // + val: Value(Scalar(<ZST>))
@@ -21,11 +21,11 @@
 +                                          // + span: $DIR/instrument_coverage.rs:18:1: 18:1
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000000)) }
 +     }
-+ 
++
 +     bb1 (cleanup): {
 +         resume;                          // scope 0 at $DIR/instrument_coverage.rs:18:1: 20:2
 +     }
-+ 
++
 +     bb2: {
 +         StorageDead(_1);                 // scope 0 at $DIR/instrument_coverage.rs:19:5: 19:9
           _0 = const true;                 // scope 0 at $DIR/instrument_coverage.rs:19:5: 19:9
@@ -38,4 +38,4 @@
           return;                          // scope 0 at $DIR/instrument_coverage.rs:20:2: 20:2
       }
   }
-  
+
diff --git a/src/test/mir-opt/instrument_coverage/rustc.main.InstrumentCoverage.diff b/src/test/mir-opt/instrument_coverage/rustc.main.InstrumentCoverage.diff
index 82d21467827eb..b604124215ea3 100644
--- a/src/test/mir-opt/instrument_coverage/rustc.main.InstrumentCoverage.diff
+++ b/src/test/mir-opt/instrument_coverage/rustc.main.InstrumentCoverage.diff
@@ -1,17 +1,17 @@
 - // MIR for `main` before InstrumentCoverage
 + // MIR for `main` after InstrumentCoverage
-  
+
   fn main() -> () {
       let mut _0: ();                      // return place in scope 0 at $DIR/instrument_coverage.rs:9:11: 9:11
       let mut _1: ();                      // in scope 0 at $DIR/instrument_coverage.rs:9:1: 15:2
       let mut _2: bool;                    // in scope 0 at $DIR/instrument_coverage.rs:11:12: 11:17
       let mut _3: !;                       // in scope 0 at $DIR/instrument_coverage.rs:11:18: 13:10
 +     let mut _4: ();                      // in scope 0 at $DIR/instrument_coverage.rs:9:1: 15:2
-  
+
       bb0: {
 -         falseUnwind -> [real: bb1, cleanup: bb2]; // scope 0 at $DIR/instrument_coverage.rs:10:5: 14:6
 +         StorageLive(_4);                 // scope 0 at $DIR/instrument_coverage.rs:9:1: 15:2
-+         _4 = const std::intrinsics::count_code_region(const 0u32) -> bb7; // scope 0 at $DIR/instrument_coverage.rs:9:1: 15:2
++         _4 = const std::intrinsics::count_code_region(const 0_u32) -> bb7; // scope 0 at $DIR/instrument_coverage.rs:9:1: 15:2
 +                                          // ty::Const
 +                                          // + ty: unsafe extern "rust-intrinsic" fn(u32) {std::intrinsics::count_code_region}
 +                                          // + val: Value(Scalar(<ZST>))
@@ -25,7 +25,7 @@
 +                                          // + span: $DIR/instrument_coverage.rs:9:1: 9:1
 +                                          // + literal: Const { ty: u32, val: Value(Scalar(0x00000000)) }
       }
-  
+
       bb1: {
           StorageLive(_2);                 // scope 0 at $DIR/instrument_coverage.rs:11:12: 11:17
           _2 = const bar() -> [return: bb3, unwind: bb2]; // scope 0 at $DIR/instrument_coverage.rs:11:12: 11:17
@@ -36,20 +36,20 @@
                                            // + span: $DIR/instrument_coverage.rs:11:12: 11:15
                                            // + literal: Const { ty: fn() -> bool {bar}, val: Value(Scalar(<ZST>)) }
       }
-  
+
       bb2 (cleanup): {
           resume;                          // scope 0 at $DIR/instrument_coverage.rs:9:1: 15:2
       }
-  
+
       bb3: {
           FakeRead(ForMatchedPlace, _2);   // scope 0 at $DIR/instrument_coverage.rs:11:12: 11:17
           switchInt(_2) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/instrument_coverage.rs:11:9: 13:10
       }
-  
+
       bb4: {
           falseEdge -> [real: bb6, imaginary: bb5]; // scope 0 at $DIR/instrument_coverage.rs:11:9: 13:10
       }
-  
+
       bb5: {
           _1 = const ();                   // scope 0 at $DIR/instrument_coverage.rs:11:9: 13:10
                                            // ty::Const
@@ -61,7 +61,7 @@
           StorageDead(_2);                 // scope 0 at $DIR/instrument_coverage.rs:14:5: 14:6
           goto -> bb0;                     // scope 0 at $DIR/instrument_coverage.rs:10:5: 14:6
       }
-  
+
       bb6: {
           _0 = const ();                   // scope 0 at $DIR/instrument_coverage.rs:12:13: 12:18
                                            // ty::Const
@@ -73,10 +73,10 @@
           StorageDead(_2);                 // scope 0 at $DIR/instrument_coverage.rs:14:5: 14:6
           return;                          // scope 0 at $DIR/instrument_coverage.rs:15:2: 15:2
 +     }
-+ 
++
 +     bb7: {
 +         StorageDead(_4);                 // scope 0 at $DIR/instrument_coverage.rs:10:5: 14:6
 +         falseUnwind -> [real: bb1, cleanup: bb2]; // scope 0 at $DIR/instrument_coverage.rs:10:5: 14:6
       }
   }
-  
+