Add ast2 array expression support, cleanup debug output

tests/include/tast2.h

@@ -32,7 +32,7 @@ typedef struct { char *a1; int *a2[1]; } A19, *A19p;
 typedef struct A20 { char a1; } A20, A21, *A21p;
 
 //Expression
-//typedef struct A21 { int **f1; int abc[123+132]; } A21;
+typedef struct A22 { int **f1; int *f2[123+132]; } A22;
 
 //Unions
 //union UNION1 {int f1; };