runtime: declare arg size/map for race version of sync/atomic functions

The argument size and map are used in stack scanning if those
functions are deferred. Declare the right argument size and map
so they can be scanned correctly.

Fixes #42599.

Change-Id: I74f9409d574cf7c383f4d8f83e38521026b48861
Reviewed-on: https://go-review.googlesource.com/c/go/+/270079
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
4 files changed
tree: f4dbde07ad8c27767b61ae96eb6d38acf8c10976
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  2. .github/
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  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.md
  10. SECURITY.md
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/
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