Bless coverage.

Author: cjgillot

tests/coverage/await_ready.cov-map

@@ -8,15 +8,13 @@ Number of file 0 mappings: 1
 Highest counter ID seen: c0
 
 Function name: await_ready::await_ready::{closure#0}
-Raw bytes (21): 0x[01, 01, 01, 05, 09, 03, 01, 0e, 1e, 00, 1f, 01, 02, 05, 01, 0f, 02, 02, 01, 00, 02]
+Raw bytes (19): 0x[01, 01, 00, 03, 01, 0e, 1e, 00, 1f, 01, 02, 05, 01, 0f, 05, 02, 01, 00, 02]
 Number of files: 1
 - file 0 => $DIR/await_ready.rs
-Number of expressions: 1
-- expression 0 operands: lhs = Counter(1), rhs = Counter(2)
+Number of expressions: 0
 Number of file 0 mappings: 3
 - Code(Counter(0)) at (prev + 14, 30) to (start + 0, 31)
 - Code(Counter(0)) at (prev + 2, 5) to (start + 1, 15)
-- Code(Expression(0, Sub)) at (prev + 2, 1) to (start + 0, 2)
-    = (c1 - c2)
-Highest counter ID seen: c0
+- Code(Counter(1)) at (prev + 2, 1) to (start + 0, 2)
+Highest counter ID seen: c1