apply latest changes made to syscall/mksyscall_windows.go

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/152200043

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/153810043

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/144980043

Dropped (or not moved) for some unknown reason. Restore them.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/140680044

That CL worked around a bug present in the
OS X Yosemite Public Beta versions 1 and 2.
Beta 3 (released today) has fixed the bug.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/144010043

LGTM=0intro
R=rsc, 0intro
CC=golang-codereviews
https://golang.org/cl/141870043

LGTM=rsc, aram, 0intro
R=rsc, aram, 0intro
CC=golang-codereviews
https://golang.org/cl/138280043

LGTM=bradfitz, r
R=r, bradfitz
CC=golang-codereviews
https://golang.org/cl/126090044

These are being deleted from go.sys because in general they can
only be implemented in close coordination with the runtime.

LGTM=0intro
R=golang-codereviews, 0intro
CC=golang-codereviews
https://golang.org/cl/132810043

These are being deleted from go.sys because in general they can
only be implemented in close coordination with the runtime.

LGTM=dave
R=rsc, dave, josharian
CC=golang-codereviews
https://golang.org/cl/129500043

These are being deleted from go.sys because in general they can
only be implemented in close coordination with the runtime.

LGTM=alex.brainman
R=alex.brainman
CC=golang-codereviews
https://golang.org/cl/132010043

71db3dc120af os: make SameFile handle paths like c:a.txt properly
ff34a3e84dc0 net: fix CNAME resolving on Windows

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/130250043

Also zsyscall_windows_386.go and zsyscall_windows_amd64.go
have same contents, so merge them into single file.

LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/124430043

If we use a local type, it won't compare properly with errors from
the rest of the standard library. Errors are the one type from syscall
that propagates through the system, so it's important to have only
one type for them.

Ditto for syscall.Signal.

LGTM=dave
R=rsc, dave
CC=golang-codereviews
https://golang.org/cl/123490043

All consts in errors_windows.go (except APPLICATION_ERROR) were
"invented" at the start of windows port to have minimal impact on
existing Go packages. No point keeping them around.
Also remove Errno, since we will be using syscall.Errno everywhere anyway.

LGTM=r
R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/128290044

Fix build.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/123510043

Don't re-implement these functions.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/124390043

Don't re-implement these functions.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/124350045

If we use a local type, it won't compare properly with errors from
the rest of the standard library. Errors are the one type from syscall
that propagates through the system, so it's important to have only
one type for them.

mkerrors_windows.sh is gone, so:
 - rename zerrors_windows.go and delete its DO NOT EDIT mark
 - delete the contentless zerrors_windows_*.go files

LGTM=rsc
R=rsc
CC=alex.brainman, golang-codereviews
https://golang.org/cl/122600043

If we use a local type, it won't compare properly with errors from
the rest of the standard library. Errors are the one type from syscall
that propagates through the system, so it's important to have only
one type for them.
Will apply the corresponding change to the other packages once
this is approved.

Also delete some deprecated code. This is a new package; no need
to carry the past.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/126250043

also: race is supported on freebsd, so fix a couple of build tags

LGTM=minux
R=rsc, minux
CC=golang-codereviews
https://golang.org/cl/124330043

Simple oversight.

LGTM=alex.brainman
R=alex.brainman
CC=golang-codereviews, rsc
https://golang.org/cl/121660043

For this particular system call, which uses the net package,
the expected error is syscall.EPERM not unix.EPERM.

With this change, go test passes on my linux.

LGTM=iant, rsc
R=rsc, iant
CC=golang-codereviews
https://golang.org/cl/125270043

Also provide stubs to call loadlibrary and getprocaddress, which are implemented
for package syscall by runtime/syscall_windows.goc.
Should get the windows go.sys build closer to green.

LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/126170043

They were missed yesterday when adding the tags for all the other unix variants.

LGTM=aram
R=rsc, aram
CC=golang-codereviews
https://golang.org/cl/126150043

The environment is global state that is owned by the standard syscall package.
With this change, go test passes on darwin in the unix directory.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/129900043

Approach but probably not achieve a green build.

LGTM=adg
R=golang-codereviews, adg
CC=golang-codereviews
https://golang.org/cl/126120043

It's a peculiar environment that probably doesn't belong here.
We can bring it back easily if we need it.

LGTM=dave, rsc
R=rsc, dave
CC=golang-codereviews
https://golang.org/cl/128110043

Darwin/amd64 now builds. No others tested yet.
mkall.sh also runs correctly. The updates, which are
substantial, are not yet applied to avoid unnecessary churn.
Restore mkerrors.sh, which is needed in the unix directory.

LGTM=rsc
R=rsc
CC=golang-codereviews
https://golang.org/cl/122410044

Semi-automatic migration from package syscall to package {plan9,windows,unix}.
No builds attempted yet, but this gets a lot of noise behind us so subsequent
CLs will be more concise and easier to follow.
Subsequent CLs will have semantic content.

LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/121520043

This CL copies to each package of go.sys the files from syscall it will need.
Different directories have different files, but these:
        mkall.sh
        str.go
        syscall.go
        mksyscall.pl
        race.go
        race0.go
        syscall_test.go
are copied to all three.
No changes yet, these are just copies. They are not ready to use yet:
package names are wrong, for starters. But this clean copy will make
it easier to follow the changes as the packages are enabled.

LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/126960043

See http://golang.org/s/go1.4-syscall for background.

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/123130043

R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/44810044

See this thread for background:
https://groups.google.com/forum/#!topic/golang-dev/xG7vPi21r8g

R=golang-codereviews, r
CC=golang-codereviews
https://golang.org/cl/39440047

I edited the wrong README when cloning the empty repo to create the tools one.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/9486043

This subrepo is the ultimate home for some of the experimental components
being developed in go.exp now, and also existing pieces such as go vet.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/9481043

R=r
CC=golang-dev
https://golang.org/cl/6026043

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5845057

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5572056