When prefix doesn't match, was deleting entire .6 file.

R=dsymonds
CC=golang-dev
https://golang.org/cl/4427041

R=adg
CC=golang-dev
https://golang.org/cl/4426041

R=dfc
CC=golang-dev
https://golang.org/cl/4416044

The previous code was just wrong. Let's not talk about it.
Passes iant's new test.

R=rsc, iant, iant2
CC=golang-dev
https://golang.org/cl/4396053

R=r
CC=golang-dev
https://golang.org/cl/4404048

R=r, r2
CC=golang-dev
https://golang.org/cl/4398048

Don't use the rewrite rule from a previous test
for the next test if there is no rewrite rule
provided.

R=r, r2
CC=golang-dev
https://golang.org/cl/4419045

Fixes #1659

R=rsc, bradfitzgo, bradfitzwork
CC=bradfitz, golang-dev
https://golang.org/cl/4368052

The new reflection API makes it an error to call value.Set(x)
if x is invalid. Guard for it.

Added corresponding test case.

Fixes #1696.

R=rsc, r
CC=golang-dev
https://golang.org/cl/4398047

Ubuntu and/or GNOME have some bug that likes
to set the "http_proxy" environment variable
and forgets to unset it.  This is annoying
to debug.  Be clear in the error message that
a proxy was in use.

R=rsc
CC=golang-dev
https://golang.org/cl/4409045

R=rsc
CC=golang-dev
https://golang.org/cl/4406048

. Missing declaration of runtime.brk_();
. Argument v in runtime.SysReserve() is not used;
  (I'd prefer a Plan 9-type solution...)

R=golang-dev, r, r2
CC=golang-dev
https://golang.org/cl/4368076

R=r
CC=golang-dev
https://golang.org/cl/4400047

We already had support on the client side. I also changed the name of
the flag in the ServerHello structure to match the name of the same
flag in the ClientHello (ocspStapling).

R=bradfitzgo
CC=golang-dev
https://golang.org/cl/4408044

This fixes our http behavior (even if Handlers forget to
consume a request body, we do it for them before we send
their response header), fixes the racy TestServerExpect,
and adds TestServerConsumesRequestBody.

With GOMAXPROCS>1, the http tests now seem race-free.

R=rsc
CC=golang-dev
https://golang.org/cl/4419042

R=rsc
CC=golang-dev
https://golang.org/cl/4414044

R=r, r2
CC=golang-dev
https://golang.org/cl/4370049

Fixes #1698.
Fixes #1699.

R=ken2
CC=golang-dev
https://golang.org/cl/4419041

R=bradfitzwork
CC=golang-dev
https://golang.org/cl/4397043

Fixes #1697.

R=ken2
CC=golang-dev
https://golang.org/cl/4395045

R=rsc
CC=golang-dev
https://golang.org/cl/4418043

R=rsc
CC=golang-dev
https://golang.org/cl/4416042

fixes build with GCC4.6

R=adg
CC=golang-dev
https://golang.org/cl/4396048

R=dsymonds
CC=golang-dev
https://golang.org/cl/4400044

R=dsymonds
CC=golang-dev
https://golang.org/cl/4396047

The list elements are already being allocated out of a
single memory buffer.  We can drop the Link* pointer
following and the memory it requires, replacing it with
index operations.

The change also keeps a channel from containing a pointer
back into its own allocation block, which would create a
cycle.  Blocks involved in cycles are not guaranteed to be
finalized properly, and channels depend on finalizers to
free OS-level locks on some systems.  The self-reference
was keeping channels from being garbage collected.

runtime-gdb.py will need to be updated in order to dump
the content of buffered channels with the new data structure.

Fixes #1676.

R=ken2, r
CC=golang-dev
https://golang.org/cl/4411045

R=golang-dev, niemeyer, r
CC=golang-dev
https://golang.org/cl/4372052

Fixes #1685.

R=ken2
CC=golang-dev
https://golang.org/cl/4414042

R=rog, adg, rsc
CC=golang-dev
https://golang.org/cl/4388048

Fixes #1689.

R=rsc
CC=golang-dev
https://golang.org/cl/4404043

Update goyacc, cgo to be more canonical in their naming and silence the new warnings.

R=rsc, gri
CC=golang-dev
https://golang.org/cl/4417042

R=r, nigeltao_gnome
CC=golang-dev
https://golang.org/cl/4404041

R=r, bradfitzwork
CC=golang-dev
https://golang.org/cl/4406044

Newly enabled compiler errors need workaround.

R=rsc
CC=golang-dev
https://golang.org/cl/4397047

R=rsc
CC=golang-dev
https://golang.org/cl/4403045

This mostly adds Expect 100-continue tests (from
the perspective of server correctness) that were
missing before.

It also fixes a few missing cases that will
probably never come up in practice, but it's nice
to have handled correctly.

Proper 100-continue client support remains a TODO.

R=rsc, bradfitzwork
CC=golang-dev
https://golang.org/cl/4399044

- replaced existing testdata/test.sh with new gofmt_test
- added initial test case for rewrite tests

TODO: Need to add more tests.

R=rsc
CC=golang-dev
https://golang.org/cl/4368063

R=rsc
CC=golang-dev
https://golang.org/cl/4397046

This CL is only cut-and-paste, moving code around.
Moving it in a separate CL should simplify the diffs in later CLs.

There are three patterns here.

1. A function like
        func (v Value) M() (...) {
                return v.panicIfNot(K).(*kValue).M()
        }
becomes
        func (v Value) M() (...) {
                vv := v.panicIfNot(K).(*kValue)

                // body of (*kValue).M, s/v./vv./g
        }

2. A function like
        func (v Value) M() (...) {
                return v.panicIfNots(kList).(mer).M()
        }
becomes
        func (v Value) M() (...) {
                switch vv := v.panicIfNots(kList).(type) {
                case *k1Value:
                        // body of (*k1Value).M, s/v./vv./g
                case *k2Value:
                        // body of (*k2Value).M, s/v./vv./g
                ...
                }
                panic("not reached")
        }

3. The rewrite of Value.Set follows 2, but each case
is built from the bodies of (*kValue).SetValue and (*kValue).Set.
        func (v *kValue) SetValue(x Value) {
                v.Set(x.panicIfNot(K).(*kValue)
        }
        func (v *kValue) Set(x *kValue) {
                ... body
        }
becomes, in the switch from 2,
                case *kValue:
                        xx := x.panicIfNot(K).(*kValue)
                        ... body, s/v./vv./g; s/x./xx./g

R=r
CC=golang-dev
https://golang.org/cl/4398044

R=rsc, gri
CC=golang-dev
https://golang.org/cl/4411044