- added import/export test cases

R=r
OCL=13723
CL=13723

usr/gri/gosrc/test/a.go

+package A
+
+import (
+	B "b";
+	C "c";
+	D "d";
+)

usr/gri/gosrc/test/b.go

+package B
+
+import C "c"
+import D "d"
+
+export type T1 C.T1;
+export type T2 D.T2;
+
+export var (
+	v0 D.T1;
+	v1 C.T1;
+	v2 *C.F1;
+)

usr/gri/gosrc/test/c.go

+package C
+
+import "d"
+
+export type T1 D.T1;
+export type T2 D.T2;
+export type F1 func (a D.T1, b *D.T2);

usr/gri/gosrc/test/d.go

+package D
+
+type T0 int
+
+export type T1 struct {
+	n int;
+	a, b T0;
+}
+
+export type T2 struct {
+	u, v float;
+}
+
+export func (obj *T2) M1(u, v float) {
+}