cmd/internal/obj/loong64: merge two branch classes into one

When the kind of the operand is TYPE_BRANCH, we cannot determine
whether it is a long branch or a short branch, so we merge these
two classes into one.

Change-Id: I7d7fa8f62ff02791ec3de4e3e3f7610bc9cb1743
Reviewed-on: https://go-review.googlesource.com/c/go/+/565626
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
3 files changed
tree: 102044f60e2805a4b49db60d4e1225d471c49734
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
README.md

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