Kinectrics Inc. v. FCL Fisker Custome & Logistics Inc. contains the clearest statement of the principle that different claims are subject to different limitations analyses even when they arise out of similar circumstances:
 […] Different causes of action can attract a different limitations analysis even where the claims arose out of common circumstances: Winmill v. Woodstock (Police Services Board), 2017 ONCA 962, 138 O.R. (3d) 641, at paras. 17, 43, citing West v. Ontario, 2015 ONCA 147, at paras. 2-3; Fantl v. Transamerica Life Canada, 2013 ONSC 2298, 21 C.C.L.I. (5th) 175, at paras. 180-181, varied on other grounds, 2015 ONSC 1367, 125 O.R. (3d) 230 (Div. Ct.), 2016 ONCA 633, 133 O.R. (3d) 422. Even if the cargo claim does not involve a discoverability analysis as contended by Anderson Haulage, the negligence and contract claims that have been pleaded do give rise to an assessment of discoverability.
To my knowledge, that principle isn’t stated elsewhere so succinctly. The appellate decisions cited aren’t quite as explicit about the point as you’d like.