correct the comments (#19322)

--expandArc

```
var
  a
  b
a = matrix(5, 5, 1.0)
b = matrix(5, 5, 2.0)
`=sink`(b, -
  let blitTmp = b
  wasMoved(b)
  blitTmp +
    a)
`=destroy`(b)
`=destroy`(a)
```
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flywind 2022-01-04 18:10:46 +08:00 • committed by GitHub
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@ -127,11 +127,11 @@ proc analyse(c: var Con; b: var BasicBlock; n: PNode) =
for i in 0 ..< n.len: for i in 0 ..< n.len:
analyse(c, b, n[i]) analyse(c, b, n[i])
else: else:
#[ Test tmatrix.test3: #[ Test destructor/tmatrix.test3:
Prevent this from being elided. We should probably Prevent this from being elided. We should probably
find a better solution... find a better solution...
`=sink`(b, - ( `=sink`(b, -
let blitTmp = b; let blitTmp = b;
wasMoved(b); wasMoved(b);
blitTmp + a) blitTmp + a)