Alan Donovan 932a4a4bef go/types: add Var.Kind() VarKind method
This CL adds an enum type, VarKind, that discriminates among
the various kinds of Var, and adds setter/getter methods
for Var's kind field.

Beware: NewVar has a weaker postcondition: the Var objects it
returns are not completely initialized and require a call to
Var.SetKind. This should only affect importers.

No changes are needed to the export data, since the kind can
always be deduced from the context when decoding.

See CL 645656 for the corresponding x/tools changes.

+ test, relnote, API

Updates golang/go#70250

Change-Id: Icde86ad22a880cde6f50bc12bf38004a5c6a1025
Reviewed-on: https://go-review.googlesource.com/c/go/+/645115
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Findley <rfindley@google.com>
2025-03-05 10:21:15 -08:00
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Files in this directory are data for Go's API checker ("go tool api", in src/cmd/api).

Each file is a list of API features, one per line.

go1.txt (and similarly named files) are frozen once a version has been
shipped. Each file adds new lines but does not remove any.

except.txt lists features that may disappear without breaking true
compatibility.

Starting with go1.19.txt, each API feature line must end in "#nnnnn"
giving the GitHub issue number of the proposal issue that accepted
the new API. This helps with our end-of-cycle audit of new APIs.
The same requirement applies to next/* (described below), which will
become a go1.XX.txt for XX >= 19.

The next/ directory contains the only files intended to be mutated.
Each file in that directory contains a list of features that may be added
to the next release of Go. The files in this directory only affect the
warning output from the go api tool. Each file should be named
nnnnn.txt, after the issue number for the accepted proposal.
(The #nnnnn suffix must also appear at the end of each line in the file;
that will be preserved when next/*.txt is concatenated into go1.XX.txt.)

When you add a file to the api/next directory, you must add at least one file
under doc/next. See doc/README.md for details.