==== tests/cases/compiler/genericTypeWithNonGenericBaseMisMatch.ts (2 errors) ====
    interface I {
    	f: (a: { a: number }) => void
    }
    class X<T extends { a: string }> implements I {
          ~
!!! Class 'X<T>' incorrectly implements interface 'I':
!!!   Types of property 'f' are incompatible:
!!!     Type '(a: T) => void' is not assignable to type '(a: { a: number; }) => void':
!!!       Types of parameters 'a' and 'a' are incompatible:
!!!         Type 'T' is not assignable to type '{ a: number; }':
!!!           Types of property 'a' are incompatible:
!!!             Type 'string' is not assignable to type 'number'.
    	f(a: T): void { }
    }
    var x = new X<{ a: string }>();
    var i: I = x; // Should not be allowed -- type of 'f' is incompatible with 'I'
        ~
!!! Type 'X<{ a: string; }>' is not assignable to type 'I':
!!!   Types of property 'f' are incompatible:
!!!     Type '(a: { a: string; }) => void' is not assignable to type '(a: { a: number; }) => void':
!!!       Types of parameters 'a' and 'a' are incompatible:
!!!         Type '{ a: string; }' is not assignable to type '{ a: number; }':
!!!           Types of property 'a' are incompatible:
!!!             Type 'string' is not assignable to type 'number'.