tests/cases/conformance/es6/yieldExpressions/YieldExpression17_es6.ts(1,15): error TS1056: Accessors are only available when targeting ECMAScript 5 and higher.
tests/cases/conformance/es6/yieldExpressions/YieldExpression17_es6.ts(1,15): error TS2378: A 'get' accessor must return a value or consist of a single 'throw' statement.
tests/cases/conformance/es6/yieldExpressions/YieldExpression17_es6.ts(1,23): error TS1163: 'yield' expression must be contained_within a generator declaration.