Fix octal parsing that it unearthed.

R=rsc
APPROVED=rsc
DELTA=11  (5 added, 0 deleted, 6 changed)
OCL=32924
CL=32945

R=rsc
DELTA=293  (224 added, 0 deleted, 69 changed)
OCL=32917
CL=32944

only need to fix up certain
denominators

R=rsc
OCL=32928
CL=32928

still to do - overflow, mod

R=rsc
OCL=32927
CL=32927

no real change -- disabled because of bugs

R=rsc
OCL=32923
CL=32923

- added some TODOs

DELTA=46  (15 added, 4 deleted, 27 changed)
OCL=32901
CL=32918

R=ken
OCL=32902
CL=32914

R=rsc
DELTA=514  (513 added, 0 deleted, 1 changed)
OCL=32898
CL=32910

hope this will work around Mac NFS bug
where writing to an 8.out that has crashed
recently sometimes wedges NFS.

R=r
DELTA=3  (3 added, 0 deleted, 0 changed)
OCL=32906
CL=32908

R=ken
OCL=32900
CL=32900

TBR=r
OCL=32896
CL=32896

R=ken
OCL=32890
CL=32894

R=rsc
DELTA=7  (3 added, 3 deleted, 1 changed)
OCL=32885
CL=32889

R=ken
OCL=32888
CL=32888

R=ken
OCL=32887
CL=32887

R=ken
OCL=32886
CL=32886

disable func redeclaration mismatch test;
fix golden.out

R=ken
OCL=32883
CL=32883

R=ken
OCL=32882
CL=32882

more interesting than most

R=rsc
DELTA=132  (131 added, 0 deleted, 1 changed)
OCL=32876
CL=32881

still to do:
	* initializer cycle detection
	* nicer error for type checking cycles

R=ken
OCL=32855
CL=32880

R=rsc
DELTA=25  (23 added, 0 deleted, 2 changed)
OCL=32873
CL=32875

R=rsc
OCL=32858
CL=32858

TBR=rsc
OCL=32857
CL=32857

- extra bignum.go functionality for pidigits.go
- tuned bignum multiplication

R=r
DELTA=193  (186 added, 0 deleted, 7 changed)
OCL=32852
CL=32856

R=rsc
DELTA=1276  (1275 added, 0 deleted, 1 changed)
OCL=32851
CL=32854

- support for reverse printing of AST
  (for compiler testing)
- added -reverse flag to gofmt

R=rsc
DELTA=163  (125 added, 11 deleted, 27 changed)
OCL=32808
CL=32853

R=rsc
DELTA=147  (145 added, 0 deleted, 2 changed)
OCL=32840
CL=32845

checking.

R=rsc
APPROVED=rsc
DELTA=11  (0 added, 0 deleted, 11 changed)
OCL=32839
CL=32841

R=rsc
DELTA=29  (28 added, 1 deleted, 0 changed)
OCL=32829
CL=32837

R=rsc
DELTA=367  (366 added, 0 deleted, 1 changed)
OCL=32832
CL=32836

- added testcases

R=rsc
DELTA=61  (56 added, 2 deleted, 3 changed)
OCL=32831
CL=32834

R=rsc
DELTA=2  (1 added, 1 deleted, 0 changed)
OCL=32828
CL=32830

R=rsc
DELTA=85  (84 added, 1 deleted, 0 changed)
OCL=32810
CL=32810

make regexp-dna use bytes not strings (no significant timing change)

R=rsc
DELTA=149  (138 added, 1 deleted, 10 changed)
OCL=32804
CL=32807

- FieldByIndex
- changed StructField.Index type from int -> []int
- adjustments to reflect clients

R=rsc,r
DELTA=336  (263 added, 47 deleted, 26 changed)
OCL=32731
CL=32802

change the names; Match is for []byte and MatchString is for string, etc.

R=rsc
DELTA=195  (155 added, 0 deleted, 40 changed)
OCL=32800
CL=32800

R=rsc
DELTA=25  (23 added, 1 deleted, 1 changed)
OCL=32793
CL=32799

This fixes a problem introduced by CL 32684 into gobuild,
which used to use 'rm -rf' to remove the _obj directory.

R=rsc
APPROVED=rsc
DELTA=8  (4 added, 0 deleted, 4 changed)
OCL=32794
CL=32796

R=rsc
DELTA=243  (242 added, 0 deleted, 1 changed)
OCL=32786
CL=32791

declarations.

R=rsc
APPROVED=rsc
DELTA=587  (519 added, 21 deleted, 47 changed)
OCL=32754
CL=32788