cmd/compile/internal/types2: export TypeHash, return value without blanks

Change the typeWriter to produce blank-free hashes where easily possible
if used as a type hasher, and replace remaining blanks with '#' is needed.

Exported Environment.TypeHash for use by the compiler.

Change-Id: Icbd364c207f9c139a7a1844bb695512a0c56a4e4
Reviewed-on: https://go-review.googlesource.com/c/go/+/349990
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
5 files changed
tree: e4bd85cfb0e77a9a6d008833ab4fc48faf2ee51b
  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/
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