==== tests/cases/conformance/internalModules/DeclarationMerging/TwoInternalModulesThatMergeEachWithExportedClassesOfTheSameName.ts (2 errors) ====
    module A {
        export class Point {
            x: number;
            y: number;
        }
    }
    
    module A{
        // expected error
        export class Point {
                     ~~~~~
!!! Duplicate identifier 'Point'.
            origin: number;
            angle: number;
        }
    }
    
    module X.Y.Z {
        export class Line {
            length: number;
        }
    }
    
    module X {
        export module Y {
            export module Z {
                // expected error
                export class Line {
                             ~~~~
!!! Duplicate identifier 'Line'.
                    name: string;
                }
            }
        }
    }