tests/cases/conformance/es6/computedProperties/computedPropertyNamesContextualType9_ES5.ts(6,5): error TS2322: Type '{ [x: string]: string | number; [x: number]: string | number; }' is not assignable to type 'I'.
Index signatures are incompatible.
Type 'string | number' is not assignable to type 'boolean'.
Type 'string' is not assignable to type 'boolean'.