Fixes #2950.
Fixes #2951.

R=golang-dev, r
CC=golang-dev, remy
https://golang.org/cl/5672044

It depended on the old behavior of functions in structs.

R=golang-dev, rsc
CC=golang-dev, r
https://golang.org/cl/5656076

NewFile take uintptr
make syscall.ProcAttr.Files be []uintptr

R=rsc
CC=golang-dev
https://golang.org/cl/5656073

Clang 3.1 has more warnings enabled by default than GCC.
Combined with -Werror, they cause the build to fail
unnecessarily.  if the name of our compiler ends in "clang",
add the necessary extra -Wno options.  Ideally we would add
these flags unconditionally, as GCC is supposed to ignore
unknown -Wno flags, but apple's llvm-gcc doesn't.

Fixes #2878.

R=rsc, dave
CC=golang-dev
https://golang.org/cl/5673055

Periodically browse MHeap's freelists for long unused spans and release them if any.

Current hardcoded settings:
        - GC is forced if none occured over the last 2 minutes.
        - spans are handed back after 5 minutes of uselessness.

SysUnused (for Unix) is a wrapper on madvise MADV_DONTNEED on Linux and MADV_FREE on BSDs.

R=rsc, dvyukov, remyoudompheng
CC=golang-dev
https://golang.org/cl/5451057

struct literals.

R=gri
CC=golang-dev
https://golang.org/cl/5653073

TBR=golang-dev
CC=golang-dev
https://golang.org/cl/5674070

R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/5676064

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5674069

The previous link worked, but was unnecessary and had a trailing "}".

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5674068

Part of issue 2573.

R=dsymonds, golang-dev
CC=golang-dev
https://golang.org/cl/5674064

Fixes #2573.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5676063

R=golang-dev
TBR=dsymonds
CC=golang-dev
https://golang.org/cl/5673064

Updates #2946.

R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/5671061

Updates #2573.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/5677063

Update #2946.

R=golang-dev, bradfitz, bradfitz
CC=golang-dev
https://golang.org/cl/5674065

TBR=r
CC=golang-dev
https://golang.org/cl/5676062

An unindented XML example is hard to follow. MarshalIndent
allows moving the example over to a test file (and fixing it).

R=golang-dev, r, gustavo, r, rsc
CC=golang-dev
https://golang.org/cl/5674050

TBR=r
CC=golang-dev
https://golang.org/cl/5671060

Update #2573.

R=r
CC=golang-dev
https://golang.org/cl/5656071

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/5677060

It depended on old behavior of functions in structs.
Solved by adding a boolean method to check .Run != nil.

R=golang-dev, adg, r, rsc
CC=golang-dev
https://golang.org/cl/5674062

R=bradfitz
CC=golang-dev
https://golang.org/cl/5673061

R=gri
CC=golang-dev
https://golang.org/cl/5677061

go/doc: move Examples to go/ast
cmd/go: use go/doc to read examples
src/pkg: update examples to use new convention

This is to make whole file examples more readable. When presented as a
complete function, preceding an Example with its output is confusing.
The new convention is to put the expected output in the final comment
of the example, preceded by the string "output:" (case insensitive).

An idiomatic example looks like this:

// This example demonstrates Foo by doing bar and quux.
func ExampleFoo() {
        // example body that does bar and quux

        // Output:
        // example output
}

R=rsc, gri
CC=golang-dev
https://golang.org/cl/5673053

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5656070

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5672061

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/5673048

Fixes #3019.

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/5674044

Fixes #3022

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5674060

R=golang-dev, dsymonds, adg, rogpeppe, bradfitz
CC=golang-dev
https://golang.org/cl/5673052

Fixes #2896.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5677047

Whoops. Consume the body of the first request
before making the subsequent /quit request.

R=golang-dev, untheoretic
CC=golang-dev
https://golang.org/cl/5674054

Also: Simplified handling of selector expressions. As a result, complicated
multi-line expressions containing selectors and calls/indices with arguments
broken accross lines don't get indented the same way as before, but the change
is minimal (see tests) and there's no such code in the std library. It seems
a worthwhile compromise given the much simpler code.

Applied gofmt -w $GOROOT/src $GOROOT/misc .

Fixes #1847.

R=rsc
CC=golang-dev
https://golang.org/cl/5675062

R=rsc
CC=golang-dev
https://golang.org/cl/5677053

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5672055

        Fixes #3023.

R=rsc
CC=golang-dev
https://golang.org/cl/5674055

Previous CL (5674043) omit the case where runtime/cgo itself is out-of-date.
Fixes #2936 (again).

R=rsc
CC=golang-dev
https://golang.org/cl/5674048

Makes it possible to run

GOARCH=amd64 make.bash
GOARCH=386 make.bash --no-clean

to avoid deleting some of the work done by the first one.

R=golang-dev
CC=golang-dev
https://golang.org/cl/5673056

Similar to bug190, but without recursive reference.  Crashed
gccgo.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5672053