Incorrect error in extended interface when base interface has this member

[RyanCavanaugh]

TypeScript Version:

master

Code

interface Foo<T extends Bar> { x: T }

interface Bar {
    thing: this;
}

interface Something extends Bar {
    other: Foo<this>;
}

Expected behavior:
No error

Actual behavior:
Error

error TS2344: Type 'this' does not satisfy the constraint 'Bar'.
  Type 'Something' is not assignable to type 'Bar'.
    Types of property 'thing' are incompatible.
      Type 'Something' is not assignable to type 'this'.