go/types, types2: rename definedType to declaredType and clarify docs
declaredType seems a better name for this function because it is reached
when processing a (Named or Alias) type declaration. In both cases, the
fromRHS field (rather than the underlying field) will be set.
Change-Id: Ibb1cc338e3b0632dc63f9cf2fd9d64cef6f1aaa5
Reviewed-on: https://go-review.googlesource.com/c/go/+/695955
Auto-Submit: Mark Freeman <markfreeman@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Robert Griesemer <gri@google.com>