The statute laws described in ORS § 174.510 (1) are intended to speak for themselves. All sections of the statute laws so described are considered to speak as of the same date, except that in cases of conflict between two or more sections or of an ambiguity in a section, reference may be had to the Acts from which the sections are derived, for the purpose of applying the rules of construction relating to repeal or amendment by implication or for the purpose of resolving the ambiguity. [1953 c.3 § 3; 1961 c.90 § 4]