error with type declaration with generics

This is a: Bug Report

Which concerns: flow-runtime

---

``` js
type Many = T | T[];
const test: Many = ["Hello World", 0];
```

---

### What is the current behaviour?

```
Value must be one of: T | Array

Expected: T | Array

Actual Value: [
"Hello World",
0
]

Actual Type: Array
```

---

### What is the expected behaviour?

No error should be thrown

---

### Which package versions are you using?

flow-runtime 0.16.0