[fidl][go] Bindings error on absent envelopes with >0 handles. [1/2]

Next: Ie1e4119325dd7658b0cbc69478de7bd79e7509ae

The Go bindings previously reported that envelopes had an unexpected
size and/or number of handles in a non-standard way.  Further, there was
a bug in how "handle underflow" was calculated, which did not properly
test cases where there are two envelopes at the same level of a struct,
each containing handles (for example, a vector of tables with handles).
This change fixes the bug while updating the error outputs to return the
proper, GIDL-consistent error types.

Bug: 65895
Test: fidldev test go
Change-Id: I9fd6deb33bb9ccd93c08879804b5c892c28ef8c5
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/go/+/465419
Reviewed-by: Felix Zhu <fcz@google.com>
Commit-Queue: Alex Zaslavsky <azaslavsky@google.com>
3 files changed
tree: 38cc7e10f1ec39e026d578d9227b084b6b11cb2e
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. makefuchsia/
  6. makeroot/
  7. meta/
  8. misc/
  9. src/
  10. test/
  11. .gitattributes
  12. .gitignore
  13. AUTHORS
  14. BUILD.gn
  15. CONTRIBUTING.md
  16. CONTRIBUTORS
  17. favicon.ico
  18. LICENSE
  19. PATENTS
  20. README.md
  21. regen-fidl
  22. regen-syscalls
  23. robots.txt
  24. SECURITY.md
  25. VERSION
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