* keep coherent SP/PC in gobuf
	  (i.e., SP that would be in use at that PC)
	* gogocall replaces setspgoto,
	  should work better in presence of link registers
	* delete unused system calls

only amd64; 386 is now broken

R=r
DELTA=548  (183 added, 183 deleted, 182 changed)
OCL=30381
CL=30442

- nil is not a keyword
- type -> Type

R=rsc
DELTA=10  (4 added, 0 deleted, 6 changed)
OCL=30433
CL=30435

runs on the same machine don't collide.

R=r
DELTA=4  (0 added, 1 deleted, 3 changed)
OCL=30426
CL=30429

R=r
DELTA=17  (17 added, 0 deleted, 0 changed)
OCL=30417
CL=30422

  * use 64-bit file system calls (Linux, Darwin)
  * use 32-bit [sic] uid/gid calls (Linux)
  * fix sockets on Linux

Darwin/386 works again.

Linux/386 is better but must never have worked;
there are still bugs surrounding the creation of new
threads in the runtime package.

R=austin
DELTA=1332  (673 added, 614 deleted, 45 changed)
OCL=30327
CL=30380

R=rsc
DELTA=8  (4 added, 2 deleted, 2 changed)
OCL=30365
CL=30368

R=rsc
OCL=30363
CL=30363

R=rsc
OCL=30361
CL=30361

R=rsc
OCL=30359
CL=30359

- removed gratuitous newline in go/printer

R=r
DELTA=15  (2 added, 13 deleted, 0 changed)
OCL=30358
CL=30358

not [a-zA-Z0-9+-.]) before there is a ":".

This is particularly helpful in the erroneous-but-relatively-common
case of relative URLs containing an unescaped colon in the query
string--see the added test for an example.

R=rsc
APPROVED=rsc
DELTA=15  (15 added, 0 deleted, 0 changed)
OCL=30354
CL=30356

- remove some left-over files

R=rsc
DELTA=1465  (281 added, 1181 deleted, 3 changed)
OCL=30350
CL=30353

- morestack support for 5l and arm runtime
- argsize support in 5c, 5l, ar and nm. assembly code from 5a
  will break in interesting ways unless NOSPLIT is specified
- explicit cond execution constants
- fix 5l output to use %d instead of %ld so that negative
  values show.
- added a lot of code to arm/asm.s. runtime entry code almost
  working currently aborts at gogo not implemented

R=rsc
APPROVED=rsc
DELTA=305  (125 added, 29 deleted, 151 changed)
OCL=30246
CL=30347

R=rsc
DELTA=5  (0 added, 1 deleted, 4 changed)
OCL=30343
CL=30343

R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=30342
CL=30342

R=rsc
DELTA=945  (944 added, 0 deleted, 1 changed)
OCL=30315
CL=30341

not observed: do not use malloc to allocate stacks
during garbage collection, because it would make the
malloc data structures change underfoot.

R=r
DELTA=6  (3 added, 0 deleted, 3 changed)
OCL=30323
CL=30326

when changing process state to Gsyscall, not after.

R=r
DELTA=8  (4 added, 3 deleted, 1 changed)
OCL=30320
CL=30325

also update golden.out from bug162

R=rsc
DELTA=16  (16 added, 0 deleted, 0 changed)
OCL=30298
CL=30324

package main
func f(a *c.b) {}
func main() {}

BUG=1909731
R=ken
OCL=30322
CL=30322

Also fix the reflect bug that was exposed by this bug.

R=r
APPROVED=rsc
DELTA=162  (103 added, 32 deleted, 27 changed)
OCL=30125
CL=30319

- replacement for pretty; app to format a single .go file

printer.go (pkg/go/printer):
- replacement for astprinter.go; implements AST printing
- also replaces pkg/go/ast/format.go for now

cleanups:
- removed/saved away old code

R=r,rsc,iant
DELTA=2833  (1183 added, 1628 deleted, 22 changed)
OCL=30226
CL=30306

TBR=rsc
OCL=30300
CL=30300

- ast: added extra fields
- parser: extended comment parsing to capture potential trailing comments

Cleanups:
- parser: more documentation, changed various identifiers from _-style to camelCase

R=r,rsc
DELTA=214  (84 added, 13 deleted, 117 changed)
OCL=30259
CL=30299

R=iant
DELTA=3  (0 added, 3 deleted, 0 changed)
OCL=30251
CL=30251

www.google.com seems to be redirecting requests in an infinite loop. I haven't tracked down whether it's their code or this code that is causing it. This is just a quick fix so that this test passes.

APPROVED=r
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=30178
CL=30210

Compute checksums in both ways (unsigned and signed).

R=rsc
APPROVED=rsc
DELTA=188  (145 added, 21 deleted, 22 changed)
OCL=30126
CL=30179

- fixed unrelated typo

R=rsc
DELTA=2  (0 added, 0 deleted, 2 changed)
OCL=30175
CL=30175

R=rsc
APPROVED=rsc
DELTA=1329  (1264 added, 1 deleted, 64 changed)
OCL=30040
CL=30158

removal and typesigs and strings.

Also added new header support to 5c/5a/5l.

R=rsc
APPROVED=rsc
DELTA=98  (66 added, 10 deleted, 22 changed)
OCL=30103
CL=30123

R=rsc
APPROVED=rsc
DELTA=4  (0 added, 4 deleted, 0 changed)
OCL=30110
CL=30112

R=rsc
APPROVED=rsc
DELTA=392  (386 added, 2 deleted, 4 changed)
OCL=29963
CL=30107

TBR=r
OCL=30106
CL=30106

tests: all.bash passes, gobuild still works, godoc still works.

R=rsc
OCL=30096
CL=30102

needs to dereference the base pointer to make
sure it catches nil.

R=r,ken
DELTA=21  (21 added, 0 deleted, 0 changed)
OCL=30083
CL=30101

R=rsc
APPROVED=rsc
DELTA=371  (370 added, 0 deleted, 1 changed)
OCL=30029
CL=30084

so 64-bit args like the offset in Seek were being
mishandled.  fix.

R=dsymonds
DELTA=1269  (645 added, 611 deleted, 13 changed)
OCL=30082
CL=30082

R=rsc
APPROVED=rsc
DELTA=245  (167 added, 63 deleted, 15 changed)
OCL=30039
CL=30081

R=rsc
DELTA=1  (0 added, 0 deleted, 1 changed)
OCL=30080
CL=30080

- support debug/sync (if automatic sync is enabled in the first place)
- removed debug/restart feature

R=rsc
DELTA=97  (37 added, 27 deleted, 33 changed)
OCL=30068
CL=30079