==== tests/cases/conformance/expressions/valuesAndReferences/assignments.ts (6 errors) ====
    // In this file:
    //  Assign to a module
    //  Assign to a class
    //  Assign to an enum
    //  Assign to a function
    //  Assign to a variable
    //  Assign to a parameter
    //  Assign to an interface
    
    module M { }
    M = null; // Error
    ~
!!! Cannot find name 'M'.
    
    class C { }
    C = null; // Error
    ~
!!! Invalid left-hand side of assignment expression.
    
    enum E { A }
    E = null; // Error
    ~
!!! Invalid left-hand side of assignment expression.
    E.A = null; // OK per spec, Error per implementation (509581)
    ~~~
!!! Invalid left-hand side of assignment expression.
    
    function fn() { }
    fn = null; // Should be error
    ~~
!!! Invalid left-hand side of assignment expression.
    
    var v;
    v = null; // OK
    
    function fn2(p) {
        p = null; // OK
    }
    
    interface I { }
    I = null; // Error
    ~
!!! Cannot find name 'I'.