cmd/compile/internal/walk: relocate a stray comment

The explanatory comment and the associated version counter variable
for the helper routine "wrapCall" seem to have been left behind in
walk.go during the big refactoring -- move it back to where it should
be, next to wrapCall in stmt.go. Also fix a small buglet in the
comment itself.

Change-Id: I8637a838214b216581be59e01149a72282a46526
Reviewed-on: https://go-review.googlesource.com/c/go/+/303729
Trust: Than McIntosh <thanm@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2 files changed
tree: 431d8a18e95c6000951fd92d8aae47c0d2944c5b
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. SECURITY.md
  11. api/
  12. codereview.cfg
  13. doc/
  14. lib/
  15. misc/
  16. src/
  17. test/
README.md

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