vlib/v/checker/tests/undefined_ident_of_struct.vv:4:2: error: undefined ident: `f`
    2 | 
    3 | fn get() {
    4 |     f.a = 'test'
      |     ^
    5 | }
    6 |
vlib/v/checker/tests/undefined_ident_of_struct.vv:4:4: error: `f` does not return a value
    2 | 
    3 | fn get() {
    4 |     f.a = 'test'
      |       ^
    5 | }
    6 |
vlib/v/checker/tests/undefined_ident_of_struct.vv:4:4: error: unexpected symbol `void`
    2 | 
    3 | fn get() {
    4 |     f.a = 'test'
      |       ^
    5 | }
    6 |
vlib/v/checker/tests/undefined_ident_of_struct.vv:4:8: error: cannot assign to `f.a`: expected `void`, not `string`
    2 | 
    3 | fn get() {
    4 |     f.a = 'test'
      |           ~~~~~~
    5 | }
    6 |