update tests for CL 30586.
won't submit unless 30586 goes in.

R=r
DELTA=94  (65 added, 16 deleted, 13 changed)
OCL=30592
CL=30755
diff --git a/test/fixedbugs/bug143.go b/test/fixedbugs/bug143.go
index f600137..cb86310 100644
--- a/test/fixedbugs/bug143.go
+++ b/test/fixedbugs/bug143.go
@@ -8,9 +8,9 @@
 
 type myMap map[string] int;
 
-func f() *myMap {
+func f() myMap {
 	m := make(map[string] int);
-	return &m
+	return m
 }
 
 func main() {
@@ -24,9 +24,6 @@
 		x, ok := (*mp)["key"]
 	}
 	{
-		x, ok := mp["key"]
-	}
-	{
 		x, ok := f()["key"]
 	}
 	{