fix munging of pointer.

go/test: passes 69% (235/339)

R=rsc
APPROVED=rsc
DELTA=5  (4 added, 1 deleted, 0 changed)
OCL=35107
CL=35109

src/cmd/5g/gsubr.c

@@ -1633,7 +1633,6 @@ oindex:
 
 	naddr(reg1, a);
 	a->offset = 0;
-	a->name = a->type;
 	a->type = D_OREG;
 	a->reg = reg->val.u.reg;
 

test/arm-pass.txt

@@ -57,6 +57,7 @@ fixedbugs/bug048.go
 fixedbugs/bug049.go
 fixedbugs/bug050.go
 fixedbugs/bug051.go
+fixedbugs/bug052.go
 fixedbugs/bug053.go
 fixedbugs/bug057.go
 fixedbugs/bug058.go
@@ -140,6 +141,7 @@ fixedbugs/bug148.go
 fixedbugs/bug149.go
 fixedbugs/bug150.go
 fixedbugs/bug151.go
+fixedbugs/bug152.go
 fixedbugs/bug153.go
 fixedbugs/bug154.go
 fixedbugs/bug155.go
@@ -181,6 +183,7 @@ fixedbugs/bug200.go
 fixedbugs/bug201.go
 fixedbugs/bug202.go
 fixedbugs/bug203.go
+fixedbugs/bug204.go
 fixedbugs/bug205.go
 fixedbugs/bug206.go
 for.go
@@ -210,6 +213,7 @@ ken/complit.go
 ken/for.go
 ken/label.go
 ken/mfunc.go
+ken/rob2.go
 ken/robfor.go
 ken/robif.go
 ken/simpbool.go