test-matlab-ts-mode--ei-workaround-143-action-fun result:
---
% -*- matlab-ts -*-

a =  123 ./   456 ./ 1;

% Buffer-point-next-line-column: 12 (on the 4)
b = 123 .*   <!PT!>456 .* 2;

c =  123 .\  123 .\  3;
