10. The method of claim 1 further comprising: determining that the flow-affected code is an overlap in the COBOL source code; and resolving the overlap.
10. The method of claim 1 further comprising: determining that the flow-affected code is an overlap in the COBOL source code; and resolving the overlap. 11. The method of claim 10 wherein resolving the overlap comprises: cloning a portion of the COBOL source code in the overlap to form a cloned portion of the COBOL source code; and creating independent PERFORM ranges, wherein each of the independent PERFORM ranges includes the cloned portion of the COBOL source code.