tests/cases/conformance/classes/classDeclarations/classAbstractKeyword/classAbstractDeclarations.d.ts(2,5): error TS1242: 'abstract' modifier can only appear on a class or method declaration.
tests/cases/conformance/classes/classDeclarations/classAbstractKeyword/classAbstractDeclarations.d.ts(2,28): error TS1184: An implementation cannot be declared in ambient contexts.
tests/cases/conformance/classes/classDeclarations/classAbstractKeyword/classAbstractDeclarations.d.ts(11,15): error TS2515: Non-abstract class 'CC' does not implement inherited abstract member 'foo' from class 'AA'.
tests/cases/conformance/classes/classDeclarations/classAbstractKeyword/classAbstractDeclarations.d.ts(13,15): error TS2515: Non-abstract class 'DD' does not implement inherited abstract member 'foo' from class 'BB'.
tests/cases/conformance/classes/classDeclarations/classAbstractKeyword/classAbstractDeclarations.d.ts(17,15): error TS2515: Non-abstract class 'FF' does not implement inherited abstract member 'foo' from class 'CC'.