code: final boolean canRemoveAllChildren( Name primaryTypeNameOfParent,
                                          Collection<Name> mixinTypeNamesOfParent,
                                          Name childName,
                                          boolean skipProtected ) {
          return nodeTypes().canRemoveAllChildren(primaryTypeNameOfParent, mixinTypeNamesOfParent, childName, skipProtected);
      }
docs: Determine if the child node definitions of the supplied primary type and mixin types of a parent node allow all of the
  children with the supplied name to be removed.
  
  @param primaryTypeNameOfParent the name of the primary type for the parent node; may not be null
  @param mixinTypeNamesOfParent the names of the mixin types for the parent node; may be null or empty if there are no mixins
  to include in the search
  @param childName the name of the child to be added to the parent; may not be null
  @param skipProtected true if this operation is being done from within the public JCR node and property API, or false if
  this operation is being done from within internal implementations
  @return true if at least one child node definition does not require children with the supplied name to exist, or false
  otherwise