tests/cases/conformance/parser/ecmascript5/ClassDeclarations/parserClassDeclaration5.ts(1,17): error TS2304: Cannot find name 'A'. tests/cases/conformance/parser/ecmascript5/ClassDeclarations/parserClassDeclaration5.ts(1,30): error TS2304: Cannot find name 'B'. tests/cases/conformance/parser/ecmascript5/ClassDeclarations/parserClassDeclaration5.ts(1,32): error TS1175: 'implements' clause already seen. ==== tests/cases/conformance/parser/ecmascript5/ClassDeclarations/parserClassDeclaration5.ts (3 errors) ==== class C extends A implements B implements C { ~ !!! error TS2304: Cannot find name 'A'. ~ !!! error TS2304: Cannot find name 'B'. ~~~~~~~~~~ !!! error TS1175: 'implements' clause already seen. }