Incorrect code generated by "add `extends` constraint" fix for multiple usages of the same type parameter

[DanielRosenwasser]

// @strict: true
interface TypeRef<T extends {}> {
    x: T,
}

function foo<T>(): TypeRef</**/T> {
    throw undefined as any as TypeRef<T>;
}

Run Add `extends` constraint to all type parameters.

Expected

interface TypeRef<T extends {}> {
    x: T,
}

function foo<T extends {}>(): TypeRef<T> {
    throw undefined as any as TypeRef<T>;
}

Actual

interface TypeRef<T extends {}> {
    x: T,
}

function foo<T extends {} extends {}>(): TypeRef<T> {
    throw undefined as any as TypeRef<T>;
}