=== tests/cases/compiler/classImplementsClass1.ts ===
class A { }
>A : Symbol(A, Decl(classImplementsClass1.ts, 0, 0))

class C implements A { }
>C : Symbol(C, Decl(classImplementsClass1.ts, 0, 11))
>A : Symbol(A, Decl(classImplementsClass1.ts, 0, 0))