Add ui pass test for fixing custom bounds overflow

test_suite/tests/ui/pass_custom_bounds_fix_overflow.rs

@@ -0,0 +1,22 @@
+use scale_info::TypeInfo;
+
+#[allow(unused)]
+#[derive(TypeInfo)]
+// Without this we get `overflow evaluating the requirement `Vec<B<()>>: TypeInfo``.
+// The custom bounds replace the auto generated bounds.
+#[scale_info(bounds(T: TypeInfo + 'static))]
+struct A<T> {
+    a: Vec<B<T>>,
+    b: Vec<B<()>>,
+    marker: core::marker::PhantomData<T>,
+}
+
+#[allow(unused)]
+#[derive(TypeInfo)]
+struct B<T>(A<T>);
+
+fn assert_type_info<T: TypeInfo + 'static>() {}
+
+fn main() {
+    assert_type_info::<A<bool>>();
+}