Pass 5 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6452055

Fixes #3874.

R=golang-dev, nj, r, minux.ma
CC=golang-dev
https://golang.org/cl/6446060

- Allow handles into the trie for different locales.  Multiple tables share the same
  try to allow for reuse of blocks.
- Significantly improved memory footprint and reduced allocations of trieNodes.
  This speeds up generation by about 30% and allows keeping trieNodes around
  for multiple locales during generation.
- Renamed print method to fprint.

R=r
CC=golang-dev
https://golang.org/cl/6408052

Fixes #3869.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6448072

   pkg log already appends a linefeed to the log message,
so log/syslog doesn't need to append another.

R=golang-dev, bradfitz, r
CC=golang-dev
https://golang.org/cl/6441048

R=golang-dev
CC=golang-dev
https://golang.org/cl/6450058

Fixes #3860.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6443051

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6445049

Also convert NUL to U+FFFD in comments.

Pass 23 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6446055

When a cgo program calls setuid, setgid, etc., the GNU/Linux
pthread library sends signal SIGSETXID to each thread to tell
it to update its UID info.  If Go is permitted to intercept
the default SIGSETXID signal handler, the program will hang.

This patch tells the runtime package to not try to intercept
SIGSETXID on GNU/Linux.  This will be odd if a Go program
wants to try to use that signal, but it means that cgo
programs that call setuid, etc., won't hang.

Fixes #3871.

R=rsc, r, minux.ma, bradfitz
CC=golang-dev
https://golang.org/cl/6455050

The go/ast comment for FuncType.Params says that the field may be nil.
Make sure the printer accepts such a value. The go/parser always sets
the field (to provide parenthesis position information), but a program
creating a Go AST from scatch may not.

Added corresponding test case.

Fixes #3870.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6448060

If NUL bytes occur inside certain elements, convert them to U+FFFD
replacement character.

Pass 1 additional test.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6452047

Fixed creation of Func's, taking IsVariadic from parameter list rather
than results.

Updated checkObj to process ast.Fun objects.

R=gri
CC=golang-dev
https://golang.org/cl/6402046

R=rsc, minux.ma, iant
CC=golang-dev
https://golang.org/cl/6447050

Pass 1 additional test.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6443048

Declare crosscall2.  Declare the functions passed to it as
returning void, rather than relying on implicit return type.

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/6432060

Fixes #3453.

R=golang-dev, gri, jeff, bradfitz
CC=golang-dev
https://golang.org/cl/6350086

Notably, allow concurrent logging and failing.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6453045

If the body of an HTML document contains text, the <frameset> tag is
ignored. But not if the text is only whitespace.

Pass 4 additional tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6442043

R=r
CC=golang-dev
https://golang.org/cl/6435044

RemoteAddr returns not only UDPAddr but IPAddr.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/6401054

If the key is not present, return value of the type of the element
not the type of the key. Also fix a test that should have caught this case.

Fixes #3850.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6405078

Add commentary to explain better what's going on, but the
code change is a simple one-line reversal to the previous
form.

R=rsc
CC=golang-dev
https://golang.org/cl/6428072

R=nigeltao
CC=golang-dev
https://golang.org/cl/6431055

Don't unescape entities in attributes when they don't end with
a semicolon and they are followed by '=', a letter, or a digit.

Pass 6 more tests from the WebKit test suite, plus one that was
commented out in token_test.go.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6405073

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6422056

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6432062

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6434043

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/6430062

R=golang-dev, r, iant
CC=golang-dev
https://golang.org/cl/6416056

Fixes #3844.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6432054

R=golang-dev, bsiegert, r
CC=golang-dev
https://golang.org/cl/6428050

Surrogates are still admitted, but I have sent mail to golang-dev on that topic.

Fixes #3785.

R=golang-dev, rogpeppe, iant
CC=golang-dev
https://golang.org/cl/6398049

Fixes #3839.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6428053

If a Client's CheckRedirect function returns an error, we
again return both a non-nil *Response and a non-nil error.

Fixes #3795

R=golang-dev, n13m3y3r
CC=golang-dev
https://golang.org/cl/6429044

Fixes #3830.

R=golang-dev, r
CC=golang-dev, remy
https://golang.org/cl/6373047

By default, all are still run, but a particular test can be
selected with the new flags.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6395053

Fixes #3822.

R=golang-dev, r, dsymonds, minux.ma, adg
CC=golang-dev
https://golang.org/cl/6395043

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6392065

Fixes #3815.

R=r
CC=golang-dev
https://golang.org/cl/6352109