New ftplugin adds Import and Drop commands for Go buffers
in Vim.  These commands ensure that the provided package is
imported (or not imported) in the current Go buffer, using
proper style and ordering, without moving the cursor.

E.g.

    :Import strings
    :ImportAs . strings
    :Drop strings

Two mappings are also introduced to help with the fmt package:

    \f => :Import fmt
    \F => :Drop fmt

R=adg
CC=golang-dev
https://golang.org/cl/4009043

Init may report an error on the first character and
thus one needs an ability to set the error handler
for Init. Was a design bug.

Added corresponding test cases and better documentation.
Also: Fixed a subtle infinite loop exposed by one of the
new test cases.

Fixes #1380.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/4094041

This prevents many unnecessary comparisons when n is large.

R=gri, gri1, rsc
CC=golang-dev
https://golang.org/cl/4068043

R=rsc
CC=golang-dev, golang-dev
https://golang.org/cl/4106041

Uploading go files on Windows aborts with gofmt: exceptions.ValueError:
close_fds is not supported on Windows platforms if you redirect stdin/stdout/stderr

R=rsc, mattn, Joe Poirier
CC=golang-dev
https://golang.org/cl/4025046

If a file pattern is given and matches files that look
like they need to be hg added or hg removed, offer to do so.

If a file pattern is given and matches files in another CL, warn.

If a file pattern doesn't match anything, point that out.

Vet first line of CL description.

Fixes #972.

R=adg, niemeyer
CC=bradfitzgo, golang-dev
https://golang.org/cl/4099042

R=adg, r, hoka, rsc
CC=golang-dev
https://golang.org/cl/4036045

Fixes #1395.

R=adg
CC=golang-dev
https://golang.org/cl/4036044

R=anschelsc, agl1
CC=golang-dev
https://golang.org/cl/3988045

When parsing numbers with an exponent (like "12e-1"), the JSON scanner
would only allow a lowercase 'e', while the RFC also allows the
uppercase 'E'.

R=adg
CC=golang-dev, rsc
https://golang.org/cl/3986042

R=nigeltao, r2
CC=golang-dev
https://golang.org/cl/4061044

no public fields.
Fix a couple of tests caught out by this change.

R=rsc
CC=golang-dev
https://golang.org/cl/4044043

R=rsc, lxn, alex.brainman, dho
CC=golang-dev
https://golang.org/cl/1696051

(or at least a correct encoder, still to come).
Change the debug structure slightly to better represent
the grammar.
Minor tweaks for consistency in type.go.

R=rsc
CC=golang-dev
https://golang.org/cl/4007044

cmp6.go:48: invalid operation: t3 == t3 (operator == not defined on struct)

Fixes #1438.

R=ken2
CC=golang-dev
https://golang.org/cl/4003045

The test code used to do this:

for _, tc := range tests {
	ch <- &tc
}

Note that &tc is always the same value here.  As the value is
received from the channel, the sender can loop around and
change the contents of tc.  This means that the receiver's
value is unstable and can change while it is in use.

R=adg, r2, rsc
CC=chris, golang-dev
https://golang.org/cl/3978043

Close of closed channel panics.
Receive from closed channel never panics,
even if done repeatedly.

Fixes #1349.
Fixes #1419.

R=gri, iant, ken2, r, gri1, r2, iant2, rog, albert.strasheim, niemeyer, ejsherry
CC=golang-dev
https://golang.org/cl/3989042

There were duplicate closes and missing closes,
with the result that the program was rarely testing
as much as it seemed to be.  Now it finishes.

R=r
CC=golang-dev
https://golang.org/cl/4008046

Re-implement the debugging helper to be independent of the existing
implementation.  This is preparatory to a rewrite to clean up issue 1416.
Include a definition of the grammar of the data stream.

R=rsc
CC=golang-dev
https://golang.org/cl/3970045

R=rsc
CC=golang-dev
https://golang.org/cl/4083043

Otherwise gccgo gives an extra error message not matched by errchk.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4053042

R=agl1
CC=golang-dev
https://golang.org/cl/3991045

	This was broken after the last update (2011-01-20).
	However, I'm not sure if the changed example is a
	sensible use of import(), so I'd appreciate comments.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4067043

Also: Give line numbers a style and make them less intrusive.

R=rsc
CC=golang-dev
https://golang.org/cl/4060043

The functionality we want (shared ppid) is implied
by CLONE_THREAD already, and CLONE_PARENT
causes problems if the Go program is pid 1 (init).

See issue 1406 for more details.

Fixes #1406.

R=adg, iant
CC=golang-dev
https://golang.org/cl/3971044

Fixes #1410.

R=r
CC=golang-dev
https://golang.org/cl/4072043

R=rsc
CC=Miek Gieben, golang-dev
https://golang.org/cl/3926041

Also remove second email address from AUTHORS file
in a few cases.  It only has a meaning in the CONTRIBUTORS file.

R=r, gri
CC=golang-dev
https://golang.org/cl/4022042

Fixes #1433.

R=r, gri
CC=golang-dev
https://golang.org/cl/3999047

Fixes #1417.

R=ken2
CC=golang-dev
https://golang.org/cl/4079042

Fixes #1431.

R=bradfitz, dangabrad
CC=golang-dev
https://golang.org/cl/4077042

Fixes #1341.

R=ken2, r
CC=golang-dev
https://golang.org/cl/4006045

R=rsc, lvd, brainman, Joe Poirier
CC=golang-dev
https://golang.org/cl/2124041

R=rsc, peterGo, brainman
CC=golang-dev
https://golang.org/cl/3733046

R=rsc
CC=golang-dev
https://golang.org/cl/3746044

R=rsc, brainman
CC=golang-dev
https://golang.org/cl/4030043

The o+i*p approach to visiting select cases in random
order stops being fair when there is some case that
is never ready.  If that happens, then the case that follows
it in the order gets more chances than the others.

In general the only way to ensure fairness is to make
all permutations equally likely.  I've done that by computing
one explicitly.

Makes the permutations correct for n >= 4 where
previously they were broken.  For n > 12, there's not
enough randomness to do a perfect job but this should
still be much better than before.

Fixes #1425.

R=r, ken2, ejsherry
CC=golang-dev
https://golang.org/cl/4037043

s2k implements the string-to-key functions for OpenPGP

R=rsc
CC=golang-dev
https://golang.org/cl/3937043

Otherwise syscall.Errstr() returns "" for some (EWOULDBLOCK) errors.

R=rsc
CC=golang-dev
https://golang.org/cl/3941041

R=golang-dev
CC=golang-dev
https://golang.org/cl/4089041