…form-agnostic

The new wasip1 GOOS does not support exec, but some ios environments
(like Corellium) might. Update the test to exec itself with -test.list
as a control case.

For golang/go#58141.

Change-Id: Id69950fc394910620f6c73cb437ca75c09ad8c29
Reviewed-on: https://go-review.googlesource.com/c/sync/+/485980
Run-TryBot: Bryan Mills <bcmills@google.com>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>

This change was produced using 'go mod tidy -go=1.17'
with a go command built at CL 315210.

This activates lazy loading, and updates the go.mod file to maintain
the lazy-loading invariants (namely, including an explicit requirement
for every package transitively imported by the main module).

Note that this does *not* prevent users with earlier go versions from
successfully building packages from this module.

For golang/go#36460.

Change-Id: Idb3d8d056d41bb254d0b5d9b2699ac33a51081f3
Reviewed-on: https://go-review.googlesource.com/c/sync/+/316130
Auto-Submit: Bryan Mills <bcmills@google.com>
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Fixes golang/go#60208

Change-Id: I422a45c0f139ba47045f47cec1c96d300a2a424f
Reviewed-on: https://go-review.googlesource.com/c/sync/+/496535
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Reviewed-by: Bryan Mills <bcmills@google.com>

Fixes golang/go#59355

Change-Id: Ib6a88e7e5fefe7b0d5672035af16d109aabcbf1e
Reviewed-on: https://go-review.googlesource.com/c/sync/+/481255
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Currently when singleflight recovers from a panic, it wraps it with the private
error type panicError. This change adds an `Unwrap` method to panicError to
allow wrapped errors to be returned.

Updates golang/go#62511

Change-Id: Ia510ad7d5881207ef71f9eb89c1766835af19b6b
Reviewed-on: https://go-review.googlesource.com/c/sync/+/526171
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
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Done with:

go get go@1.18
go mod tidy
go fix ./...

Using go1.21.3.

While here, simplify package syncmap by taking advantage of knowing
that all supported Go versions will have the go1.9 build constraint
satisfied.

For golang/go#60268.

Change-Id: Ic0f24ab13ada6839573e55beee5516c1a6c7f3cc
Reviewed-on: https://go-review.googlesource.com/c/sync/+/534220
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
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Add doc link to sync.WaitGroup in the package documentation.

Rationale:
The reference to sync.WaitGroup might be obvious to the authors of this
package, but it wasn't to me, so despites I had seen this package
multiple times I had never made the link to sync.WaitGroup. So when
playing with WaitGroup I was missing remembering about errgroup.
In hope this will help others as well as my future self.

Change-Id: I2c56976958ad9ab94c1596c96fa86c00dd73d2fb
Reviewed-on: https://go-review.googlesource.com/c/sync/+/538335
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Reviewed-by: Carlos Amedee <carlos@golang.org>
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