tests/cases/conformance/types/typeRelationships/assignmentCompatibility/nullAssignedToUndefined.ts(1,9): error TS2364: Invalid left-hand side of assignment expression.
==== tests/cases/conformance/types/typeRelationships/assignmentCompatibility/nullAssignedToUndefined.ts (1 errors) ====
var x = undefined = null; // error
~~~~~~~~~
!!! error TS2364: Invalid left-hand side of assignment expression.
var y: typeof undefined = null; // ok, widened