=== tests/cases/compiler/inheritedOverloadedSpecializedSignatures.ts ===
interface A {
>A : A, Symbol(A, Decl(inheritedOverloadedSpecializedSignatures.ts, 0, 0), Decl(inheritedOverloadedSpecializedSignatures.ts, 10, 19), Decl(inheritedOverloadedSpecializedSignatures.ts, 19, 1))

  (key:string):void;
>key : string, Symbol(key, Decl(inheritedOverloadedSpecializedSignatures.ts, 1, 3))
}

interface B extends A {
>B : B, Symbol(B, Decl(inheritedOverloadedSpecializedSignatures.ts, 2, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 15, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 23, 1))
>A : A, Symbol(A, Decl(inheritedOverloadedSpecializedSignatures.ts, 0, 0), Decl(inheritedOverloadedSpecializedSignatures.ts, 10, 19), Decl(inheritedOverloadedSpecializedSignatures.ts, 19, 1))

  (key:'foo'):string;
>key : 'foo', Symbol(key, Decl(inheritedOverloadedSpecializedSignatures.ts, 5, 3))
}

var b:B;
>b : B, Symbol(b, Decl(inheritedOverloadedSpecializedSignatures.ts, 8, 3))
>B : B, Symbol(B, Decl(inheritedOverloadedSpecializedSignatures.ts, 2, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 15, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 23, 1))

// Should not error
b('foo').charAt(0);
>b('foo').charAt(0) : string
>b('foo').charAt : (pos: number) => string, Symbol(String.charAt, Decl(lib.d.ts, 279, 23))
>b('foo') : string
>b : B, Symbol(b, Decl(inheritedOverloadedSpecializedSignatures.ts, 8, 3))
>'foo' : string
>charAt : (pos: number) => string, Symbol(String.charAt, Decl(lib.d.ts, 279, 23))
>0 : number

interface A {
>A : A, Symbol(A, Decl(inheritedOverloadedSpecializedSignatures.ts, 0, 0), Decl(inheritedOverloadedSpecializedSignatures.ts, 10, 19), Decl(inheritedOverloadedSpecializedSignatures.ts, 19, 1))

    (x: 'A1'): string;
>x : 'A1', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 13, 5))

    (x: string): void;
>x : string, Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 14, 5))
}

interface B extends A {
>B : B, Symbol(B, Decl(inheritedOverloadedSpecializedSignatures.ts, 2, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 15, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 23, 1))
>A : A, Symbol(A, Decl(inheritedOverloadedSpecializedSignatures.ts, 0, 0), Decl(inheritedOverloadedSpecializedSignatures.ts, 10, 19), Decl(inheritedOverloadedSpecializedSignatures.ts, 19, 1))

    (x: 'B1'): number;
>x : 'B1', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 18, 5))
}

interface A {
>A : A, Symbol(A, Decl(inheritedOverloadedSpecializedSignatures.ts, 0, 0), Decl(inheritedOverloadedSpecializedSignatures.ts, 10, 19), Decl(inheritedOverloadedSpecializedSignatures.ts, 19, 1))

    (x: 'A2'): boolean;
>x : 'A2', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 22, 5))
}

interface B  {
>B : B, Symbol(B, Decl(inheritedOverloadedSpecializedSignatures.ts, 2, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 15, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 23, 1))

    (x: 'B2'): string[];
>x : 'B2', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 26, 5))
}

interface C1 extends B {
>C1 : C1, Symbol(C1, Decl(inheritedOverloadedSpecializedSignatures.ts, 27, 1))
>B : B, Symbol(B, Decl(inheritedOverloadedSpecializedSignatures.ts, 2, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 15, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 23, 1))

	(x: 'C1'): number[];
>x : 'C1', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 30, 2))
}

interface C2 extends B {
>C2 : C2, Symbol(C2, Decl(inheritedOverloadedSpecializedSignatures.ts, 31, 1))
>B : B, Symbol(B, Decl(inheritedOverloadedSpecializedSignatures.ts, 2, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 15, 1), Decl(inheritedOverloadedSpecializedSignatures.ts, 23, 1))

	(x: 'C2'): boolean[];
>x : 'C2', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 34, 2))
}

interface C extends C1, C2 {
>C : C, Symbol(C, Decl(inheritedOverloadedSpecializedSignatures.ts, 35, 1))
>C1 : C1, Symbol(C1, Decl(inheritedOverloadedSpecializedSignatures.ts, 27, 1))
>C2 : C2, Symbol(C2, Decl(inheritedOverloadedSpecializedSignatures.ts, 31, 1))

	(x: 'C'): string;
>x : 'C', Symbol(x, Decl(inheritedOverloadedSpecializedSignatures.ts, 38, 2))
}

var c: C;
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>C : C, Symbol(C, Decl(inheritedOverloadedSpecializedSignatures.ts, 35, 1))

// none of these lines should error
var x1: string[] = c('B2');
>x1 : string[], Symbol(x1, Decl(inheritedOverloadedSpecializedSignatures.ts, 43, 3))
>c('B2') : string[]
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'B2' : string

var x2: number = c('B1');
>x2 : number, Symbol(x2, Decl(inheritedOverloadedSpecializedSignatures.ts, 44, 3))
>c('B1') : number
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'B1' : string

var x3: boolean = c('A2');
>x3 : boolean, Symbol(x3, Decl(inheritedOverloadedSpecializedSignatures.ts, 45, 3))
>c('A2') : boolean
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'A2' : string

var x4: string = c('A1');
>x4 : string, Symbol(x4, Decl(inheritedOverloadedSpecializedSignatures.ts, 46, 3))
>c('A1') : string
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'A1' : string

var x5: void = c('A0');
>x5 : void, Symbol(x5, Decl(inheritedOverloadedSpecializedSignatures.ts, 47, 3))
>c('A0') : void
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'A0' : string

var x6: number[] = c('C1');
>x6 : number[], Symbol(x6, Decl(inheritedOverloadedSpecializedSignatures.ts, 48, 3))
>c('C1') : number[]
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'C1' : string

var x7: boolean[] = c('C2');
>x7 : boolean[], Symbol(x7, Decl(inheritedOverloadedSpecializedSignatures.ts, 49, 3))
>c('C2') : boolean[]
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'C2' : string

var x8: string = c('C');
>x8 : string, Symbol(x8, Decl(inheritedOverloadedSpecializedSignatures.ts, 50, 3))
>c('C') : string
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'C' : string

var x9: void = c('generic');
>x9 : void, Symbol(x9, Decl(inheritedOverloadedSpecializedSignatures.ts, 51, 3))
>c('generic') : void
>c : C, Symbol(c, Decl(inheritedOverloadedSpecializedSignatures.ts, 41, 3))
>'generic' : string