Fixes #2721.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5532090

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5553050

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5532085

gc: fieldnames in structliterals in exported inlines should not be qualified if they're embedded builtin types.

Trust me.
Fixes #2687.

R=rsc
CC=golang-dev
https://golang.org/cl/5545047

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5536053

First was, apart from adding tests, a single line of code (to add the
constructor function). Adding SHA512-based hashing to crypto/hmac
required minor rework of the package because of a previously hardcoded
block-size in it's implementation. Instead of using a hash.Hash
generator function the constructor function now uses a crypto.Hash
type, which was extended to expose information about block size.

The only standard library package impacted by the change is
crypto/tls, for which the fix is included in this patch. It might be
useful to extend gofix to include this API change too.

R=agl, r, rsc, r
CC=golang-dev
https://golang.org/cl/5550043

Fixes #2714.

R=rsc
CC=golang-dev
https://golang.org/cl/5540066

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5556044

bug345.dir/main.go:25:18: error: argument 1 has incompatible type (need explicit conversion; missing method ‘Write’)
bug345.dir/main.go:27:8: error: argument 1 has incompatible type

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5556043

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5536044

Fixes #2643.

R=rsc, d_smithson
CC=golang-dev
https://golang.org/cl/5543068

Fixes #2724.

R=r, dsymonds
CC=golang-dev
https://golang.org/cl/5555043

We need to avoid allocating an extra word for the interface value
passing the floating-point value as an interface{}. It's easy.

Fixes #2722.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5553044

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5528115

The package documentation did not mention them.
They were described only in godoc for gotest, and that's going away.

R=golang-dev, rsc, adg
CC=golang-dev
https://golang.org/cl/5539079

Follow-on from https://golang.org/cl/5543062.

R=bradfitz, dvyukov
CC=golang-dev
https://golang.org/cl/5539071

Fixes #2720.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5545072

Fixes 2450, probably.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5540074

go test runs the tests itself; it does not run the gotest command,
so these mentions are confusing.

R=golang-dev, n13m3y3r
CC=golang-dev
https://golang.org/cl/5551043

Fixes #1820.

R=golang-dev, bradfitz, gri
CC=golang-dev
https://golang.org/cl/5540073

Fixes #2405

R=rsc
CC=golang-dev
https://golang.org/cl/5539048

On 32-bit machines, %g takes an extra malloc. I don't know why yet,
but this makes the test pass again, and enables it even for -short.

Fixes #2653.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/5542055

Fixes #2698

R=rsc
CC=golang-dev
https://golang.org/cl/5539060

R=golang-dev
CC=golang-dev
https://golang.org/cl/5539076

R=golang-dev, duperray.olivier, r
CC=adg, golang-dev
https://golang.org/cl/5542054

        Fixes #2717.

R=r, rsc, dsymonds
CC=golang-dev
https://golang.org/cl/5545069

R=rsc
CC=golang-dev
https://golang.org/cl/5543063

Fixes #1909

R=rsc, gri
CC=golang-dev
https://golang.org/cl/5523047

Fixes #2713.

R=golang-dev, r
CC=golang-dev, mpimenov
https://golang.org/cl/5545065

Mostly copied comments from unix files.

R=rsc
CC=golang-dev
https://golang.org/cl/5533057

Fixes #2652.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/5516045

R=golang-dev
CC=golang-dev
https://golang.org/cl/5540062

Duplicated fields from URL were dropped so that its behavior
is simple and expected when being stringified and when being
operated by packages like http. Most of the preserved fields
are in unencoded form, except for RawQuery which continues to
exist and be more easily handled via url.Query().

The RawUserinfo field was also replaced since it wasn't practical
to use and had limitations when operating with empty usernames
and passwords which are allowed by the RFC. In its place the
Userinfo type was introduced and made accessible through the
url.User and url.UserPassword functions.

What was previous built as:

        url.URL{RawUserinfo: url.EncodeUserinfo("user", ""), ...}

Is now built as:

        url.URL{User: url.User("user"), ...}

R=rsc, bradfitz, gustavo
CC=golang-dev
https://golang.org/cl/5498076

R=rsc
CC=golang-dev
https://golang.org/cl/5543065

        5l/asm.c: code in line 311-319 has already outputed segtext.sect->next;

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5532048

Fixes #2044.

R=golang-dev
CC=golang-dev
https://golang.org/cl/5541056

Fixes #2598.

R=golang-dev, ality, minux.ma, mpimenov, rsc
CC=golang-dev
https://golang.org/cl/5510043

The Makefiles will go away soon.

R=agl
CC=golang-dev
https://golang.org/cl/5544081

R=golang-dev
TBR=adg
CC=golang-dev
https://golang.org/cl/5545068

Until a RFC 6265 jar lands, Request.AddCookie() will work incorrectly.

Fixes #2692

R=bradfitz, rsc
CC=golang-dev, r
https://golang.org/cl/5544069