cmd/compile: move validation from unary/binaryOp to typecheck

CL 254400 makes typecheck set untyped type correctly. We now have enough
information to check valid operators for a type in typecheck.

Passes toolstash-check.

Change-Id: I01a7606ee6ce9964ec52430d53eaa886442bd17f
Reviewed-on: https://go-review.googlesource.com/c/go/+/255617
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2 files changed
tree: f6ca35720c8d91b08cb4538b6c53b6fb6cc963a9
  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. doc/
  13. favicon.ico
  14. lib/
  15. misc/
  16. robots.txt
  17. src/
  18. test/
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