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override-object-no.scala:14: error: overriding object Bar in trait Foo with object Bar in trait Foo2:
an overriding object must conform to the overridden object's class bound;
 found   : case1.Bippy
 required: case1.Bippy with case1.Bippo
    override object Bar extends Bippy {  // err
                    ^
override-object-no.scala:21: error: overriding object Bar in trait Quux1 with object Bar in trait Quux2:
an overriding object must conform to the overridden object's class bound;
 found   : Object{def g: String}
 required: Object{def g: Int}
  trait Quux2 extends Quux1 { override object Bar { def g = "abc" } } // err
                                              ^
override-object-no.scala:25: error: overriding object Bar in trait Quux3;
 object Bar cannot override final member
  trait Quux4 extends Quux3 { override object Bar  } // err
                                              ^
override-object-no.scala:43: error: overriding object A in class Foo with object A in class P2:
an overriding object must conform to the overridden object's class bound;
 found   : case2.Bar[List[String]]
 required: case2.Bar[Traversable[String]]
    override object A extends Bar[List[String]]  // err
                    ^
four errors found