sites plus optimized constant code a bit (one less register
  used).
- changed conditional branches, might need a re-tweak later
- gave up on agen OINDEX and copied/fixed the version in 8g

go/test: passes 66% (225/339)

R=rsc
APPROVED=rsc
DELTA=148  (67 added, 32 deleted, 49 changed)
OCL=35040
CL=35055

(in sync with spec CL 35047)

R=rsc
DELTA=44  (4 added, 8 deleted, 32 changed)
OCL=35048
CL=35054

R=rsc
DELTA=224  (214 added, 10 deleted, 0 changed)
OCL=35041
CL=35050

R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=35023
CL=35049

R=gri
DELTA=8  (3 added, 0 deleted, 5 changed)
OCL=35045
CL=35047

DELTA=68  (51 added, 8 deleted, 9 changed)
OCL=35038
CL=35046

R=ken
OCL=35042
CL=35044

R=rsc
DELTA=331  (266 added, 61 deleted, 4 changed)
OCL=35024
CL=35030

DELTA=42  (10 added, 11 deleted, 21 changed)
OCL=35017
CL=35020

### 3656
XXstart 3656
XXedit 3656 src/cmd/5g/ggen.c
XXedit 3656 src/pkg/runtime/arm/asm.s
XXedit 3656 test/arm-pass.txt
# submit 3656
hg ci -u 'Kai Backman <kaib@golang.org>' -d '1253922857 25200' -l - <<'HGEOF'
support for go and defer.

go/test: passes 64% (218/339)

R=rsc
APPROVED=rsc
DELTA=60  (39 added, 0 deleted, 21 changed)
OCL=35018
CL=35018

TBR=r
OCL=35015
CL=35015

- added missing <p> tags in various places

DELTA=62  (32 added, 4 deleted, 26 changed)
OCL=35014
CL=35014

- cosmetic adjustments

R=r
DELTA=30  (0 added, 0 deleted, 30 changed)
OCL=35010
CL=35012

to date.

R=rsc
APPROVED=rsc
DELTA=8  (6 added, 0 deleted, 2 changed)
OCL=35009
CL=35011

package.  If a Sym is a function symbol, include a reference
to the Func so it's easily accessible when you're traversing
the list of all symbols.  This diff is more interesting than
the proc switch because the gosym interface differs from the
old sym interface.

R=rsc
APPROVED=rsc
DELTA=1957  (34 added, 1868 deleted, 55 changed)
OCL=34969
CL=35008

R=rsc
APPROVED=rsc
DELTA=3  (0 added, 3 deleted, 0 changed)
OCL=34970
CL=35007

R=rsc
APPROVED=rsc
DELTA=36  (0 added, 0 deleted, 36 changed)
OCL=34971
CL=35006

DELTA=355  (93 added, 85 deleted, 177 changed)
OCL=34904
CL=34998

R=ken
OCL=34995
CL=34997

R=r
DELTA=81  (57 added, 24 deleted, 0 changed)
OCL=34991
CL=34996

- delete some unused files (copies archived elsewhere)

TBR=r
OCL=34994
CL=34994

R=rsc
DELTA=10  (10 added, 0 deleted, 0 changed)
OCL=34987
CL=34987

R=r
DELTA=33  (32 added, 0 deleted, 1 changed)
OCL=34983
CL=34986

fixes 386 build.

R=r
DELTA=56  (56 added, 0 deleted, 0 changed)
OCL=34979
CL=34981

TBR=rsc
OCL=34978
CL=34978

mostly cut and paste from 6l.

R=r
DELTA=930  (525 added, 182 deleted, 223 changed)
OCL=34976
CL=34976

R=ken
OCL=34975
CL=34975

R=r
DELTA=30  (24 added, 3 deleted, 3 changed)
OCL=34950
CL=34974

can write all 3 output files and then compile them by hand.

R=r
DELTA=919  (841 added, 16 deleted, 62 changed)
OCL=34954
CL=34973

debug/proc to install to the right place.  Delete the old
ptrace package.  The diff looks huge, but it's mostly
s/ptrace/proc/.

R=rsc
APPROVED=rsc
DELTA=1940  (10 added, 1835 deleted, 95 changed)
OCL=34966
CL=34968

R=rsc
APPROVED=rsc
DELTA=8  (0 added, 2 deleted, 6 changed)
OCL=34854
CL=34965

used by ogle)

R=rsc
APPROVED=rsc
DELTA=4  (0 added, 1 deleted, 3 changed)
OCL=34852
CL=34964

the interpreter and update code to use ast.BasicDecl and
multi-type switch.  There are still a lot of "switch _ :=
x.(type)" that should make use of the new type switch syntax,
but those will be a different CL.

R=rsc
APPROVED=rsc
DELTA=58  (16 added, 23 deleted, 19 changed)
OCL=34853
CL=34963

hasn't been ported to the new sym package yet)

R=rsc
APPROVED=rsc
DELTA=9  (0 added, 1 deleted, 8 changed)
OCL=34851
CL=34962

	and report node type in error

R=gri
DELTA=4  (3 added, 0 deleted, 1 changed)
OCL=34949
CL=34955

let the browser use the font the user has set up
as the default fixed-width font, instead of forcing Courier.

also set the size to 100%, which means 100% of the
font size in the surrounding text.  this looks a little
better in the main body but much better when the
code is in a heading (like Package unsafe).

R=r
DELTA=4  (1 added, 0 deleted, 3 changed)
OCL=34947
CL=34947

existing interface still works.

R=rsc
DELTA=50  (32 added, 2 deleted, 16 changed)
OCL=34930
CL=34932

R=rsc
DELTA=161  (57 added, 56 deleted, 48 changed)
OCL=34926
CL=34929

special all-nacl.bash and test/run-nacl that
run just the tests known to work under nacl.
the rest requires closures.

fix another bug or two in syscall.

R=r
DELTA=420  (410 added, 8 deleted, 2 changed)
OCL=34882
CL=34907