Fixes #1842.

R=r
CC=golang-dev
https://golang.org/cl/4517081

R=golang-dev, gary.burd, rsc
CC=golang-dev
https://golang.org/cl/4526062

Speeds up setting individual bits by ~75%, useful
when using big.Int as a bit set.

R=gri, rsc
CC=golang-dev
https://golang.org/cl/4538053

- add Data field to ast.Object
- for package objects, the Data field holds the package scope
- resolve several TODOs

R=rsc
CC=golang-dev
https://golang.org/cl/4538069

When GOMAXPROCS>1, the testing framework runs in parallel with the
test itself and may do a small number of allocations, so allow the
"noAllocs" condition to admit just a few.

Fixes #1782.

R=rsc
CC=golang-dev, rsc
https://golang.org/cl/4533041

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4515092

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4539063

R=rsc
CC=golang-dev
https://golang.org/cl/4516057

Add seven methods to IP struct: IsUnspecified, IsLoopback,
IsMulticast, IsInterfaceLocalMulticast, IsLinkLocalMulticast,
IsLinkLocalUnicast and IsGlobalUnicast.

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4515083

Fixes #1830.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4526060

The code for converting negative floats was
incorrectly loading an FP control word from
the stack without ever having stored it there.

Thanks to Lars Pensjö for reporting this bug.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4515091

R=nigeltao
CC=golang-dev
https://golang.org/cl/4552042

R=nigeltao
CC=golang-dev
https://golang.org/cl/4535073

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4518061

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4519064

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/4551042

This CL will help to make an adaptive address family
selection possible when an any address family, vague
network string such as "ip", "tcp" or "udp" is passed
to Dial and Listen API.

Fixes #1769.

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4438066

Fixes #1779

R=rsc
CC=golang-dev
https://golang.org/cl/4543052

Fixes #1778.

R=ken2
CC=golang-dev
https://golang.org/cl/4550047

R=ken2
CC=golang-dev
https://golang.org/cl/4535074

Add implementation for addr<->reg short moves.
Align large data, for ARM.

R=ken2
CC=golang-dev
https://golang.org/cl/4545050

R=agl
CC=golang-dev
https://golang.org/cl/4517072

It worked originally, until I renamed a variable. :/

dir_windows.go:11: undefined: e
http://godashboard.appspot.com/log/092397f2ac7a1e6e812dc6bebc65b40b02368700a119343d5cee5e2e89e0fde5

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4535072

Also add an image package test that DecodeConfig returns the same
ColorModel as what Decode would.

R=r, r
CC=golang-dev
https://golang.org/cl/4529065

Fixes #678

R=rsc, r, alex.brainman, bsiegert, jdpoirier
CC=golang-dev
https://golang.org/cl/4536058

of arguments copied".

R=gri, r
CC=golang-dev
https://golang.org/cl/4550041

R=r, bradfitz, r
CC=golang-dev
https://golang.org/cl/4529064

bug340.go is a test case for a syntax error

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4523069

Also, clarify some error messages

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4548042

Fixes #1825

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4535066

Signature.Serialize already does this and they should be consistent.

R=bradfitz
CC=golang-dev
https://golang.org/cl/4521064

It interferes with keys in composite literals,
which are much more common.

R=dchest, jnwhiteh, rlight2
CC=golang-dev
https://golang.org/cl/4521065

Not sure why this only broke Windows. Make test is only run
on windows for that directory?

TBR=golang-dev

R=golang-dev
CC=golang-dev
https://golang.org/cl/4545044

The position (type) for which the "invalid cycle" error
message is reported depends on which type in a cycle of
types is first checked. Which one is first depends on
the iteration order of maps which is different on
different platforms. For now, disable this error message.

R=rsc
CC=golang-dev
https://golang.org/cl/4527059

also make a couple of links more visible and fix an id= href.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4517063

R=golang-dev, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/4543050

R=rsc
CC=golang-dev
https://golang.org/cl/4517057

At the moment types.Check() only deals with global
types and only partially so. But the framework is
there to compute them and check for cycles. An initial
type test is passing.

First step of a series of CLs to come.

R=rsc
CC=golang-dev
https://golang.org/cl/4425063

Fix analoguous error in ebnf.go which already
correctly accepted an empty production.

Fixes #1821.

R=r
CC=golang-dev
https://golang.org/cl/4526056

After improved compilation of append, regexps improve and regex-dna is 35% faster.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/4518062