<<rule>> Delete: Non-Transient Bidirectional Reference
<<preserve>>
fromClassA : EClass
<<delete>>
oldRefB : EReference
<<delete>> transient = "false"
<<preserve>>
fromClassB : EClass
<<delete>>
oldRefA : EReference
<<delete>> transient = "false"
<<delete>>
eType
<<delete>>
eOpposite
<<delete>>
eType
<<delete>>
eOpposite
<<delete>>
eContainingClass
eStructuralFeatures
<<delete>>
eContainingClass
eStructuralFeatures