==== tests/cases/compiler/contextualTypingOfArrayLiterals1.ts (1 errors) ====
    interface I {
       [x: number]: Date;
    }
    
    var x3: I = [new Date(), 1]; 
        ~~~~~~~~~~~~~~~~~~~~~~~
!!! contextualTypingOfArrayLiterals1.ts(5,5): error TS2012: Cannot convert '{}[]' to 'I':
!!! 	Index signatures of types '{}[]' and 'I' are incompatible:
!!! 		Type '{}' is missing property 'toDateString' from type 'Date'.
    var r2 = x3[1]; 
    r2.getDate(); 
    