improved iota test for new form

SVN=125995

test/golden.out

@@ -35,7 +35,7 @@ hello, world
 sieve.go:8: fatal error: walktype: switch 1 unknown op SEND l(201)
 BUG: known to fail incorrectly
 
-=========== ./simasign.go
+=========== ./simassign.go
 
 =========== ./string_lit.go
 

test/iota.go

@@ -19,7 +19,53 @@ const (
 	z = 1 << iota;
 	f float = 2 * iota;
 	g float = 4.5 * float(iota);
-);
+)
+
+const (
+	X = 0;
+	Y;
+	Z;
+)
+
+const (
+	A = 1 << iota;
+	B;
+	C;
+	D;
+	E = iota * iota;
+	F;
+	G;
+)
+
+const (
+	a = 1;
+	b = iota << a;
+	c = iota << b;
+	d;
+)
+
+const (
+	i = (a << iota) + (b * iota);
+	j;
+	k;
+	l;
+)
+
+const (
+	m = iota == 0;
+	n;
+)
+
+const (
+	p = float(iota);
+	q;
+	r;
+)
+
+const (
+	s = string(iota + 'a');
+	t;
+)
 
 func main() {
 	assert(x == 0, "x");
@@ -27,4 +73,35 @@ func main() {
 	assert(z == 4, "z");
 	assert(f == 6.0, "f");
 	assert(g == 18.0, "g");
+
+	assert(X == 0, "X");
+	assert(Y == 0, "Y");
+	assert(Z == 0, "Z");
+
+	assert(A == 1, "A");
+	assert(B == 2, "B");
+	assert(C == 4, "C");
+	assert(D == 8, "D");
+	assert(E == 16, "E");
+	assert(F == 25, "F");
+
+	assert(a == 1, "a");
+	assert(b == 2, "b");
+	assert(c == 8, "c");
+	assert(d == 12, "d");
+
+	assert(i == 1, "i");
+	assert(j == 4, "j");
+	assert(k == 8, "k");
+	assert(l == 14, "l");
+
+	assert(m, "m");
+	assert(!n, "n");
+
+	assert(p == 0.0, "p");
+	assert(q == 1.0, "q");
+	assert(r == 2.0, "r");
+
+	assert(s == "a", "s");
+	assert(t == "b", "s");
 }