Fixes #3249.

R=rsc
CC=golang-dev
https://golang.org/cl/5792043

doc: convert to use godoc built-in templates

tmpltohtml is gone, to avoid having a second copy of the code.
Instead, godoc -url /doc/go1.html will print the actual HTML
served for that URL.  "make" will generate files named go1.rawhtml
etc, which can be fed through tidy.

It can be hard to tell from the codereview diffs, but all the
tmpl files have been renamed to be html files and then
have "Template": true added.

R=golang-dev, adg, r, gri
CC=golang-dev
https://golang.org/cl/5782046

Fixes #3247.

R=golang-dev, jsing
CC=golang-dev
https://golang.org/cl/5784051

Fixes #3248.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5784052

Was missing recompilation of packages imported only
by external test packages (package foo_test), primarily
because Root was not set, so those packages looked like
they were from a different Go tree, so they were not
recompiled if they already existed.

Also clean things up so that only one call to computeStale
is needed.

Fixes #3238.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5786048

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5781053

We decided not to record installs, for now at least.

««« original CL description
misc/dashboard: record install counts for external packages

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5699082
»»»

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5790044

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5781052

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5790045

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5784048

R=r, rsc, iant, ken
CC=golang-dev
https://golang.org/cl/5781048

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5787049

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5786049

Factored the error synchronization code into two functions
syncStmt and syncDecl. Because they may return w/o advancing
the scanner, there is potential for endless loops across
multiple parse functions; typically caused by an incorrect
token list in these functions (e.g., adding token.ELSE to
syncStmt will cause the parser to go into an endless loop
for test/syntax/semi7.go without this mechanism). This would
indicate a compiler bug, exposed only in an error situation
for very specific source files. Added a mechanism to force
scanner advance if an endless loop is detected. As a result,
error recovery will be less good in those cases, but the parser
reported a source error already and at least doesn't get stuck.

R=rsc, rsc
CC=golang-dev
https://golang.org/cl/5784046

Fixes #3239.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5782049

Fixes #2912.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5783048

The spec is looser than the current implementation.
The spec edit was made in CL 4444050 (May 2011)
but I never implemented it.

Fixes #3244.

R=ken2
CC=golang-dev
https://golang.org/cl/5785049

Fixes #3152.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/5786047

R=golang-dev, nigeltao
CC=golang-dev
https://golang.org/cl/5758047

Also rename it to test.bash, for naming consistency.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5784045

R=ken2
CC=golang-dev
https://golang.org/cl/5783047

.syso files are system objects copied directly
into the package archive.

Fixes #1552.

R=alex.brainman, iant, r, minux.ma, remyoudompheng
CC=golang-dev
https://golang.org/cl/5778043

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5752049

R=adg, bradfitz
CC=golang-dev
https://golang.org/cl/5787048

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5787045

R=golang-dev, r, jdpoirier
CC=golang-dev
https://golang.org/cl/5762045

R=r
CC=golang-dev
https://golang.org/cl/5752072

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5756049

        Updates #2982.

R=rsc, rsc
CC=golang-dev
https://golang.org/cl/5759064

Fixes #3228.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5784044

Fixes #3175.

R=golang-dev, iant, rsc, r
CC=golang-dev
https://golang.org/cl/5758069

FreeBSD, alone among our supported operating systems,
required that usleep not be interrupted.  Don't require that.

Fixes #3217.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5781045

gofmt reports now a single, accurate error for
the test case of issue 3106.

Also: Added test harness for general error
checking and two test cases for now.

Fixes #3106.

R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5755062

        They can start execution even before all init functions end.

R=rsc, r, adg
CC=golang-dev
https://golang.org/cl/5732061

Fixes #1599.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5777043

I am not sure why RunTests and RunExamples are
exported, but I assume that because they are we
should not change the signature, so I added an
unexported global shared by Main and RunTests.

Fixes #3237.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5779043

If it didn't reach the limit, we can try extending the arena
before resorting to random memory mappings and praying for the
kernel to be kind.

Fixes #3173.

R=rsc, rsc
CC=golang-dev
https://golang.org/cl/5725045

R=golang-dev, gri, rsc
CC=golang-dev
https://golang.org/cl/5769044

This change is necessary to make the run shell script work
again, but it is not sufficient as bug424.go's execution line
does not name the package that it imports.

R=golang-dev, gri, rsc
CC=golang-dev
https://golang.org/cl/5771043

Fixes #3206.

R=golang-dev, gri, bradfitz
CC=golang-dev
https://golang.org/cl/5769046