checker: fix fn_array types check (#7376)

vlib/v/checker/check_types.v

@@ -74,10 +74,12 @@ pub fn (mut c Checker) check_basic(got table.Type, expected table.Type) bool {
 		(exp_type_sym.is_int() && got_type_sym.kind == .enum_) {
 		return true
 	}
-	// TODO
-	// if got_type_sym.kind == .array && exp_type_sym.kind == .array {
-	// return true
-	// }
+	// array fn
+	if got_type_sym.kind == .array && exp_type_sym.kind == .array {
+		if c.table.type_to_str(got) == c.table.type_to_str(expected) {
+			return true
+		}
+	}
 	if got_type_sym.kind == .array_fixed && exp_type_sym.kind == .byteptr {
 		info := got_type_sym.info as table.ArrayFixed
 		if info.elem_type.idx() == table.byte_type_idx {

vlib/v/tests/struct_test.v

@@ -349,3 +349,20 @@ fn test_fields_anon_fn_with_optional_void_return_type() {
 	}
 }
 
+struct Commands {
+    show []fn() string
+}
+
+fn a() string {
+    return 'HELLOW'
+}
+
+fn b() string {
+    return 'WOLLEH'
+}
+
+fn test_fields_array_of_fn() {
+    commands := Commands{show: [a, b]}
+    println(commands.show)
+	assert '$commands.show' == '[fn () string, fn () string]'
+}