In this change I'd like to combine the common code that is
present in syscall_darwin.go and syscall_freebsd.go.  I
have three reasons for wanting to do this now:

1. reducing code duplication is nearly always good :-)
2. the duplication will get worse if I duplicate this code
   a third time for the NetBSD port I'm working on, which
   I need to do almost immediately
3. by making this change all in one lump and ignoring any
   commonality with the syscall_linux*.go files the diff
   is long but, I think, readable

In future it may be possible to cherry pick functions that
also apply to Linux and put them in (say) syscall_unix.go,
and of course some functions may diverge in future and have
to move out to OS or architecture specific files, but today
I want just the low hanging fruit.

Tested and passed on:

  Darwin (Snow Leopard, 10.6): amd64 and 386
  FreeBSD (8.0-RELEASE):       386 only(*)

(*) All my virtualisation software has stopped playing nice
with FreeBSD for the moment, so I don't have facilities to
test the amd64 port.  As the OS X port is OK and the diff
looks all right to my eyes I shall keep my fingers crossed.
If someone with a FreeBSD/amd64 system cares to test and
report I would be appreciative.

2010-03-27 update: I have replaced my virtualisation software, and have working FreeBSD/i386 and FreeBSD/amd64 virtual machines again.

As I hoped (and expected -- programmers are optimists :-) the code built and passed all but the two currently known to fail tests on FreeBSD/amd64. I rechecked FreeBSD/i386 too: same results.

R=rsc
CC=golang-dev
https://golang.org/cl/751041

+ first use in go/doc

R=r
CC=golang-dev
https://golang.org/cl/781041

R=rsc
CC=golang-dev
https://golang.org/cl/778041

R=nigeltao_golang, rsc
CC=golang-dev
https://golang.org/cl/759041

R=rsc, gri
CC=golang-dev
https://golang.org/cl/763041

- new heuristic: if both the opening { and closing } braces are on the
  same line, and the function body doesn't contain comments or is other-
  wise too long (e.g. signature too long), it is formatted as a one-line
  function

- related cleanups along the way

- gofmt -w src misc led to no additional changes as expected

R=rsc, rsc1
CC=golang-dev, ken2, r
https://golang.org/cl/758041

R=rsc, gri
CC=golang-dev
https://golang.org/cl/762041

R=ken2
CC=golang-dev
https://golang.org/cl/760042

R=r
CC=golang-dev
https://golang.org/cl/731041

Fixes #639

R=rsc
CC=golang-dev
https://golang.org/cl/755041

R=rsc
CC=golang-dev
https://golang.org/cl/733041

R=r
CC=golang-dev
https://golang.org/cl/715042

test/64bit.go:  segfaults on sheevaplug(armv5)

The following have long runtimes when GC is on.
Sample run time in seconds for android emulator
and sheevaplug
test/stack.go:          4934s   1780s
test/ken/chan.go:        860s    296s
test/gc1.go:             218s     69s

R=rsc, kaib
CC=golang-dev
https://golang.org/cl/749041

R=rsc, r
CC=golang-dev
https://golang.org/cl/739042

R=adg
CC=golang-dev
https://golang.org/cl/744042

R=ken2
CC=golang-dev
https://golang.org/cl/748041

up to date.

No functional change, but when these files are regenerated
they change, leading to noisy diffs when working in the
syscall package.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/705043

R=r
CC=golang-dev
https://golang.org/cl/725042

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/747041

R=rsc
CC=golang-dev
https://golang.org/cl/743041

in the tests, println+panic.
gofmt some tests too.

R=rsc
CC=golang-dev
https://golang.org/cl/741041

- change the various url-xxx formatters to return a relative URL path
- make the leading '/' for URLs explicit in the template
- on the way change some |html formatters to |html-esc
  (html should only be used for formatting AST nodes)

R=rsc, r
CC=golang-dev
https://golang.org/cl/740041

R=rsc, gri, iant, ken2
CC=golang-dev
https://golang.org/cl/738041

(this will allow the use of golang.org for remote
searches)

R=rsc
CC=golang-dev
https://golang.org/cl/734041

R=r
CC=golang-dev
https://golang.org/cl/719041

R=rsc
CC=golang-dev
https://golang.org/cl/661044

R=iant
CC=golang-dev
https://golang.org/cl/720041

no way to get the data out yet.

add prototype for runtime.Callers,
missing from last CL.

R=r
CC=golang-dev
https://golang.org/cl/713041

R=kaib, rsc
CC=golang-dev
https://golang.org/cl/627045

cmd/goinstall: include command name in error reporting (usually missing software or incorrect $PATH)

R=rsc
CC=golang-dev
https://golang.org/cl/695041

Fixes #626.

R=ken2
CC=golang-dev
https://golang.org/cl/714041

http://www.whatwg.org/specs/web-socket-protocol/
(draft of draft-hixie-thewebsocketprotocol-76)

draft-hixie-thewebsocketprotocol-76 will introduce new handshake
incompatible draft 75 or prior.
http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol

R=rsc
CC=golang-dev
https://golang.org/cl/583041

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/645044

R=gri
CC=golang-dev
https://golang.org/cl/711041

R=r, rsc, ken2, iant
CC=golang-dev
https://golang.org/cl/708041

R=rsc, adg
CC=golang-dev
https://golang.org/cl/702042

cut copies of traceback from 6 to 1.

R=r
CC=golang-dev
https://golang.org/cl/703041

R=gri
CC=golang-dev
https://golang.org/cl/704041

Also: Actual map key must be assignment-compatible with
formal map key type.

Fixes #357.

R=r, iant, rsc, ken2
CC=golang-dev
https://golang.org/cl/673042

R=rsc
CC=golang-dev
https://golang.org/cl/699041