cmd/compile: better dclcontext handling in func{hdr,body}

funchdr and funcbody currently assume that either (1) Curfn == nil &&
dclcontext == PEXTERN, or (2) Curfn != nil && dclcontext == PAUTO.
This is a reasonable assumption during parsing. However, these
functions end up getting used in other contexts, and not all callers
are so disciplined about Curfn/dclcontext handling.

This CL changes them to save/restore arbitrary Curfn/dclcontext pairs
instead. This is necessary for the followup CL, which pushes fninit
earlier. Otherwise, Curfn/dclcontext fall out of sync, and funchdr

Passes toolstash-check.

Updates #33485.

Change-Id: I19b1be23db1bad6475345ae5c81bbdc66291a3a7
Run-TryBot: Matthew Dempsky <>
TryBot-Result: Go Bot <>
Reviewed-by: Keith Randall <>
Trust: Matthew Dempsky <>
2 files changed
tree: e05ecd25ac116c5fcd8ba7a495865c0bbf5f2dce
  1. .gitattributes
  2. .github/
  3. .gitignore
  11. api/
  12. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/

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