[dev.go2go] go/format: parse type parameters

In order to support generic code, cmd/gofmt was updated to parse type
parameters. However, the playground uses go/format, which was not
updated accordingly. Fix this.

A minor change is also made in go/printer to avoid a data race exposed
by this change.

Fixes #43470

Change-Id: I8a3ac5e3cbc8767e0ca1675130dd27634cb5018f
Reviewed-on: https://go-review.googlesource.com/c/go/+/283134
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
Trust: Robert Findley <rfindley@google.com>
3 files changed
tree: 207e3ff042e1809ebeb878c6158d965527ec040a
  1. .gitattributes
  2. .github/
  3. .gitignore
  4. AUTHORS
  5. CONTRIBUTING.md
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. README.go2go.md
  10. README.md
  11. SECURITY.md
  12. api/
  13. doc/
  14. favicon.ico
  15. lib/
  16. misc/
  17. robots.txt
  18. src/
  19. test/
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