[website] internal/pkgdoc: handle IndexListExpr

[Hyang-Ah Hana Kim (Gerrit)]

Hyang-Ah Hana Kim submitted the change

Change information

Commit message:

internal/pkgdoc: handle IndexListExpr

This fixes the panic occuring when the documentation generator
(pkgdoc) processes methods defined on generic types with multiple
type parameters (e.g., func (T[A, B]) M() {}).

The pkg.go.dev (pkgsite) is the default documentation serer and
go.dev/pkg/... are redirected to pkg.go.dev/....
However, the pkgdoc package is still used in certain cases:

- golang.google.cn serves package documentation directly using pkgdoc.
- when explicitly requested via `?m=old` (https://go.dev/pkg/fmt/?m=old)
- local development

Fixes golang/go#80430

Change-Id: I4d12c7d20ca74da4f95eb40dbb4f5e964373eeef

Reviewed-on: https://go-review.googlesource.com/c/website/+/801540

Reviewed-by: David Chase <drc...@google.com>

LUCI-TryBot-Result: golang...@luci-project-accounts.iam.gserviceaccount.com <golang...@luci-project-accounts.iam.gserviceaccount.com>

Files:

• M internal/pkgdoc/doc.go
• M internal/pkgdoc/doc_test.go

Change size: S

Delta: 2 files changed, 42 insertions(+), 0 deletions(-)

Branch: refs/heads/master

Submit Requirements:

• Code-Review: +2 by David Chase
• TryBots-Pass: LUCI-TryBot-Result+1 by golang...@luci-project-accounts.iam.gserviceaccount.com

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Gerrit

Gerrit-MessageType: merged

Gerrit-Project: website

Gerrit-Branch: master

Gerrit-Change-Id: I4d12c7d20ca74da4f95eb40dbb4f5e964373eeef

Gerrit-Change-Number: 801540

Gerrit-PatchSet: 3

Gerrit-Owner: Hyang-Ah Hana Kim <hya...@gmail.com>

Gerrit-Reviewer: David Chase <drc...@google.com>

Gerrit-Reviewer: Hyang-Ah Hana Kim <hya...@gmail.com>

Gerrit-Reviewer: golang...@luci-project-accounts.iam.gserviceaccount.com <golang...@luci-project-accounts.iam.gserviceaccount.com>