tests/cases/conformance/parser/ecmascript5/ClassDeclarations/parserClassDeclaration7.ts(2,3): error TS1038: A 'declare' modifier cannot be used in an already ambient context. ==== tests/cases/conformance/parser/ecmascript5/ClassDeclarations/parserClassDeclaration7.ts (1 errors) ==== declare module M { declare class C { ~~~~~~~ !!! error TS1038: A 'declare' modifier cannot be used in an already ambient context. } }