(Speeds up the code about 25x)

R=r
CC=golang-dev
https://golang.org/cl/3359042

Fixes #1308.

R=rsc, r2
CC=golang-dev
https://golang.org/cl/3280045

R=rsc
CC=golang-dev
https://golang.org/cl/3359041

thanks to snilsson@nada.kth.se for the original CL.

R=gri
CC=golang-dev, snilsson
https://golang.org/cl/3280044

R=gri
CC=golang-dev
https://golang.org/cl/3352041

R=r, r2
CC=golang-dev
https://golang.org/cl/3311043

R=rsc
CC=golang-dev
https://golang.org/cl/3308041

Consistently use 6060 as the port number.

R=gri
CC=golang-dev
https://golang.org/cl/3287042

R=rsc
CC=golang-dev
https://golang.org/cl/3306042

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/3288042

R=rsc, cw, PeterGo
CC=golang-dev
https://golang.org/cl/3319042

R=adg
CC=golang-dev
https://golang.org/cl/3315041

R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/3283042

R=rsc, adg
CC=golang-dev
https://golang.org/cl/3316041

R=golang-dev, nigeltao_gnome, nigeltao
CC=golang-dev
https://golang.org/cl/3334041

Fixes #1294.

R=golang-dev, PeterGo, iant
CC=golang-dev
https://golang.org/cl/3271041

R=nigeltao
CC=golang-dev
https://golang.org/cl/3294041

R=nigeltao
CC=golang-dev
https://golang.org/cl/3293041

Fixes #1281.

R=adg
CC=golang-dev
https://golang.org/cl/3150041

Fixes #1282.

R=adg
CC=golang-dev
https://golang.org/cl/3152041

Fixes #1275.

R=rsc, brainman
CC=golang-dev
https://golang.org/cl/3136042

# test program
1 package main
2
3 type C chan int
4
5 func F(c C) {
6 	c <- true
7 }

# old error
test.go:6: cannot use true (type bool) as type int in function argument

# new error
test.go:6: cannot use true (type bool) as type int in channel send

R=rsc, ejsherry
CC=golang-dev
https://golang.org/cl/3231042

This will make it easier to use Pos values
together with suffix arrays by slightly de-
coupling the mapping of Pos values to global
offsets.

R=rsc
CC=golang-dev
https://golang.org/cl/3231041

thanks to vskrap, andrey mirtchovski,
and Eoghan Sherry.

R=rsc
CC=golang-dev
https://golang.org/cl/3245041

- compare against fsModified to check if index is out of date
- don't change fsModified if there are no user-mapped file systems

R=rsc, iant
CC=golang-dev
https://golang.org/cl/3213041

        (Files which I left out of the initial commit to keep it small.)

R=rsc
CC=golang-dev
https://golang.org/cl/3183043

R=gri
CC=golang-dev
https://golang.org/cl/3200041

cipher is intended to replace crypto/block over time. This
change only adds basic parts: CBC and CTR mode and doesn't add
the package to the top-level Makefile.

R=r, rsc
CC=golang-dev
https://golang.org/cl/3069041

R=rsc
CC=golang-dev
https://golang.org/cl/3209041

typecheck of composit literals
to get rid of n^2 behavior.

R=rsc
CC=golang-dev
https://golang.org/cl/3208041

R=rsc
CC=golang-dev
https://golang.org/cl/3207041

R=rsc, gri
CC=golang-dev
https://golang.org/cl/3206041

This makes it much easier to use a tool like Swig which needs
to run either 8c or 6c on generated code which #include's
"runtime.h".

R=ken2, rsc
CC=golang-dev
https://golang.org/cl/3205041

Backwards incompatible change, but makes
it easier to reason about non-idiomatic searches:
now f specifies what is sought.

R=gri
CC=golang-dev
https://golang.org/cl/3195042

Change comment to be more generic,
with indexed data structure search as
one common use case.

Fix typo []data.

R=gri, rog
CC=golang-dev
https://golang.org/cl/3159041

R=r, r2
CC=golang-dev
https://golang.org/cl/2890041

R=rsc
CC=golang-dev
https://golang.org/cl/3183041

- adjustments to position.go due to changed sort.Search semantics
- various minor fixes

R=rsc
CC=golang-dev, r
https://golang.org/cl/3079041

This fixes a problem with relativePath, where
a prefix was not recognized because it ended
in "//" as opposed to just "/".

Also: Minor unrelated cleanup of a declaration.

R=rsc
CC=golang-dev
https://golang.org/cl/3146041

A pos value represents a file-set specific, accurate
source position value. It is 8x smaller in size than
the corresponding Position value (4 bytes vs 32 bytes).

Using Pos values instead of Position values in AST
saves approx. 25MBytes of memory when running godoc
on the current repository.

This CL introduces the Pos, File, and FileSet data
types; it does not affect existing code. Another
(pending CL) will make the change to all dependent
source files.

Missing: tests

R=r
CC=golang-dev, rsc
https://golang.org/cl/2936041