Emitter crashes for static property of class expression

[ghost]

TypeScript Version: nightly

Code

(Requires --target es6)

(class {
    static x = 0;
});

Expected behavior: No crash

Actual behavior:

TypeError: Cannot read property 'id' of undefined
    at Object.getNodeId (tsc.js:13122:18)
    at getGeneratedNameForNode (tsc.js:30138:29)
    at emitClassLikeDeclarationForES6AndHigher (tsc.js:33691:37)
    at emitClassLikeDeclaration (tsc.js:33649:21)
    at emitClassExpression (tsc.js:33639:24)
    at emitJavaScriptWorker (tsc.js:35749:32)
    at emitNodeWithoutSourceMap (tsc.js:35557:21)
    at emitNodeWithSourceMap (tsc.js:35551:21)
    at emitNodeConsideringCommentsOption (tsc.js:35542:21)
    at emit (tsc.js:35525:17)