diagnostic.source >> Mock(JavaFileObject) {
            name >> "SomeFile.java"
        }
        diagnostic.lineNumber | diagnostic.columnNumber | diagnostic.startPosition | diagnostic.endPosition >> Diagnostic.NOPOS

        when:
        diagnosticToProblemListener.buildProblem(diagnostic, spec)

        then:
        1 * spec.fileLocation("SomeFile.java")
        0 * spec.lineInFileLocation(_)

IntervalTree.prototype={insert(datum){const startPosition=this.beginPositionCb_(datum);const endPosition=this.endPositionCb_(datum);const node=new IntervalTreeNode(datum,startPosition,endPosition);this.size_++;this.root_=this.insertNode_(this.root_,node);this.root_.colour=Colour.BLACK;return datum;},insertNode_(root,node){if(root===undefined)return node;if(root.leftNode&&root.leftNode.isRed&...