=== tests/cases/compiler/interfaceSubtyping.ts === interface iface { >iface : Symbol(iface, Decl(interfaceSubtyping.ts, 0, 0)) foo(): void; >foo : Symbol(foo, Decl(interfaceSubtyping.ts, 0, 17)) } class Camera implements iface{ >Camera : Symbol(Camera, Decl(interfaceSubtyping.ts, 2, 1)) >iface : Symbol(iface, Decl(interfaceSubtyping.ts, 0, 0)) constructor (public str: string) { >str : Symbol(str, Decl(interfaceSubtyping.ts, 4, 17)) } foo() { return "s"; } >foo : Symbol(foo, Decl(interfaceSubtyping.ts, 5, 5)) }