tests/cases/compiler/extBaseClass2.ts(2,31): error TS2339: Property 'B' does not exist on type 'typeof M'. tests/cases/compiler/extBaseClass2.ts(7,29): error TS2304: Cannot find name 'B'. ==== tests/cases/compiler/extBaseClass2.ts (2 errors) ==== module N { export class C4 extends M.B { ~ !!! error TS2339: Property 'B' does not exist on type 'typeof M'. } } module M { export class C5 extends B { ~ !!! error TS2304: Cannot find name 'B'. } }