3 @class I0; // expected-note 2{{forward declaration of class here}}
6 int g0 = sizeof(I0); // expected-error{{invalid application of 'sizeof' to an incomplete type 'I0'}}
9 void *g3(I0 *P) {
10   P = P+5;        // expected-error {{arithmetic on a pointer to an incomplete type 'I0'}}
12 …4];   // expected-error{{expected method to read array element not found on object of type 'I0 *'}}
17 @interface I0 {  interface
26 int g1[ sizeof(I0)     // expected-error {{application of 'sizeof' to interface 'I0' is not support…
29 @implementation I0  implementation
35 int g2[ sizeof(I0)   // expected-error {{application of 'sizeof' to interface 'I0' is not supported…
53 int bar(I0 *P) {
54 …P = P+5;  // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant siz…
55 …P = 5+P;  // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant siz…
56 …P = P-5;  // expected-error {{arithmetic on pointer to interface 'I0', which is not a constant siz…
58 …2];  // expected-error {{expected method to read array element not found on object of type 'I0 *'}}