internal/cabi: test composite

internal/cabi/_testdata/wrap/composite.c

@@ -0,0 +1,84 @@
+struct basearray1 {
+    int x[1];
+};
+
+struct array10 {
+    struct basearray1 base;
+};
+
+struct array10 demo_array10(struct array10 a) {
+    return a;
+}
+
+struct array11 {
+    struct basearray1 base;
+    int z;
+};
+
+struct array11 demo_array11(struct array11 a) {
+    return a;
+}
+
+struct basepoint1 {
+    int x; 
+};
+
+struct point10 {
+    struct basepoint1 base;
+};
+
+struct point10 demo_point10(struct point10 a) {
+    return a;
+}
+
+struct point11 {
+    struct basepoint1 base;
+    int z;
+};
+
+struct point11 demo_point11(struct point11 a) {
+    return a;
+}
+
+struct basearray2 {
+    int x[2];
+};
+
+struct array20 {
+    struct basearray2 base;
+};
+
+struct array20 demo_array20(struct array20 a) {
+    return a;
+}
+
+struct array21 {
+    struct basearray2 base;
+    int z;
+};
+
+struct array21 demo_array21(struct array21 a) {
+    return a;
+}
+
+struct basepoint2 {
+    int x;
+    int y;  
+};
+
+struct point20 {
+    struct basepoint2 base;
+};
+
+struct point20 demo_point20(struct point20 a) {
+    return a;
+}
+
+struct point21 {
+    struct basepoint2 base;
+    int z;
+};
+
+struct point21 demo_point21(struct point21 a) {
+    return a;
+}