Enhances test/run.go to support testing other directories
   Will enable stdio tests on Windows in a follow-up CL.

R=golang-dev, alex.brainman, rsc
CC=golang-dev
https://golang.org/cl/6220049

When an element (like <nobr> or <p>) was implicitly closed by another
start tag, it would keep foster parenting from working because
the check for what was on top of the stack of open elements was
in the wrong place.

Move the check to addChild.

Pass 2 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6460045

R=golang-dev, fullung
CC=golang-dev
https://golang.org/cl/6443085

R=golang-dev, rsc
CC=golang-dev, r, yarikos
https://golang.org/cl/6454104

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6454091

Hold ForkLock during dup of fd + cloexec in the net pkg,
per the locking policy documented in syscall/exec_unix.go.

R=golang-dev, dsymonds, adg
CC=golang-dev
https://golang.org/cl/6457080

Since NUL usually terminates strings in underlying syscalls, allowing
it when converting string arguments is a security risk, especially
when dealing with filenames. For example, a program might reason that
filename like "/root/..\x00/" is a subdirectory or "/root/" and allow
access to it, while underlying syscall will treat "\x00" as an end of
that string and the actual filename will be "/root/..", which might
be unexpected. Returning EINVAL when string arguments have NUL in
them makes sure this attack vector is unusable.

R=golang-dev, r, bradfitz, fullung, rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6458050

R=golang-dev
CC=golang-dev
https://golang.org/cl/6454100

benchmark                                old ns/op    new ns/op    delta
BenchmarkCompareStringEqual                     51           35  -30.20%
BenchmarkCompareStringIdentical                 51            7  -85.71%
BenchmarkCompareStringSameLength                25           18  -28.29%
BenchmarkCompareStringDifferentLength            2            2   +1.46%

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/6450092

This line helps me to tell whether the CL is waiting for me or I'm waiting for the author.

Also:
 - vertical-align table cells so buttons are always aligned with CL headers.
 - add email= to show front page for someone else.

 Demo at http://rsc.gocodereview.appspot.com/.
 Until this is deployed for real, some recently changed CLs may be
 missing the 'first line of last message' part.

R=dsymonds
CC=golang-dev
https://golang.org/cl/6446065

Too many people use it without reading what it does.
Those people want ReadBytes or ReadString.

Fixes #3906.

R=golang-dev, iant, r
CC=golang-dev
https://golang.org/cl/6442087

The improvement is obtained by eliminating the zero
initialization of a large structure that is only
needed when the fast path fails.

Also add a missing roundtrip test for float32s.

benchmark                              old ns/op    new ns/op    delta
BenchmarkAppendFloatDecimal                  301          180  -40.20%
BenchmarkAppendFloat                         486          388  -20.16%
BenchmarkAppendFloatExp                      492          383  -22.15%
BenchmarkAppendFloatNegExp                   478          370  -22.59%
BenchmarkAppendFloatBig                      650          541  -16.77%
BenchmarkAppendFloat32Integer                308          180  -41.56%
BenchmarkAppendFloat32ExactFraction          449          333  -25.84%
BenchmarkAppendFloat32Point                  494          390  -21.05%
BenchmarkAppendFloat32Exp                    488          387  -20.70%
BenchmarkAppendFloat32NegExp                 488          378  -22.54%

R=r, rsc
CC=golang-dev, remy
https://golang.org/cl/6346081

The content of an HTML <title> element is RCDATA, but the content of an SVG
<title> element is parsed as tags. Now the parser doesn't go into RCDATA
mode in foreign content.

Pass 4 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6448111

I have C functions implemented in .syso file (rather than .so or inlined in .go file).
W/o this change the gcc invocation fails with undefined symbols.

R=minux.ma, rsc
CC=golang-dev
https://golang.org/cl/6352076

E.g. sync/atomic.LoadInt32() can be called as sync»atomic·LoadInt32()

R=rsc
CC=golang-dev
https://golang.org/cl/6448057

R=adg, rsc, franciscossouza, seb.binet, gen.battle
CC=golang-dev
https://golang.org/cl/5845071

R=golang-dev, dave, rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6225051

Fixes #3899.

R=rsc
CC=golang-dev, remy
https://golang.org/cl/6453084

The compiler is incorrectly rejecting switches on arrays of
comparable types. It also doesn't catch incomparable structs
when typechecking the switch, leading to unreadable errors
during typechecking of the generated code.

Fixes #3894.

R=rsc
CC=gobot, golang-dev, r, remy
https://golang.org/cl/6442074

These aren't needed for scalar multiplication, but since we export a
generic Add function we should handle it.

This change also corrects two bugs in p224Contract that it turned up.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6458076

PAX systems are Linux systems that are more paranoid about memory permissions.
These flags tell them to relax when running Go binaries.

Fixes #47.

R=iant
CC=golang-dev
https://golang.org/cl/6326054

R=rsc
CC=golang-dev
https://golang.org/cl/6430064

R=rsc
CC=golang-dev
https://golang.org/cl/6453083

This removes some (non-short only) tests that involved connections to
the outside world and thus were flakey. This does remove some test
coverage of the root fetchers on non-Windows platforms, but the right
place for that is crypto/x509.

R=golang-dev, krautz, rsc
CC=golang-dev
https://golang.org/cl/6455085

We already support reading ECDSA certificates and this change adds
write support.

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6422046

for dealing with CLDR files:
- Add now taxes a list of indexes of colelems that are variables. Checking and
  handling is now done by the Builder.  VariableTop is now also properly generated
  using the Build method.
- Introduced separate Builder, called Tailoring, for creating tailorings of root
  table.  This clearly separates the functionality for building a table based on
  weights (the allkeys* files) versus tables based on LDML XML files.
- Tailorings are now added by two calls instead of one: SetAnchor and Insert.
  This more closely reflects the structure of LDML side and simplifies the
  implementation of both the client and library side.  It also preserves
  some information that is otherwise hard to recover for the Builder.
- Allow the LDML XML element extend to be passed to Insert.  This simplifies
  both client and library implementation.

R=r
CC=golang-dev
https://golang.org/cl/6454061

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6442080

R=r
CC=golang-dev
https://golang.org/cl/6442076

Don't print unexported struct fields; their values are
not accessible via reflection.

Fixes #3898.

Also:
- added support for arrays
- print empty maps, arrays, slices, structs on one line
  for a denser output
- added respective test cases

R=r
CC=golang-dev
https://golang.org/cl/6454089

Pass 2 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6454090

R=andybalholm
CC=golang-dev
https://golang.org/cl/6453071

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/6445068

Process a package's object in a reproducible
order (rather then in map order) so that we
get error messages in reproducible order.

R=r
CC=golang-dev
https://golang.org/cl/6449076

The text inside <script> tags is not ordinary raw text; there are all sorts
of other complications. This CL implements those complications.

Pass 76 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6443070

    we can't import "./bug0" on windows, as it will trigger
"import path contains invalid character ':'" error.
    instead, we pass "-D." and "-I." to gc to override this
behavior. this idea is due to remyoudompheng.

R=golang-dev, r, alex.brainman, remyoudompheng
CC=golang-dev
https://golang.org/cl/6441074

     Fixes #3866.

R=rsc, r, nigeltao
CC=golang-dev
https://golang.org/cl/6452046

Fixes #3828.

R=golang-dev, iant, rsc
CC=golang-dev
https://golang.org/cl/6420056

This is more in sync with the rest of the package;
for instance, we have functions (not methods) to
deref or find the underlying type of a Type.

In the process use a single bytes.Buffer to create
the string representation for a type rather than
the (occasional) string concatenation.

R=r
CC=golang-dev
https://golang.org/cl/6458057

Also:
- replaced existing test with a more comprehensive test
- fixed bug in map type creation

R=r
CC=golang-dev
https://golang.org/cl/6450072

If an end tag has an attribute that is a quoted string containing '>',
the tokenizer would end the tag prematurely. Now it reads the attributes
on end tags just as it does on start tags, but the high-level interface
still doesn't return them, because their presence is a parse error.

Pass 1 additional test.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6457060