It makes the most sense (at least for left-to-right language speaking
locales) to have the most final and most destructive UI elements read
last, as interacting with those is the most permanent, and requires the
full context of the information in the element.
In diff comments, actions like 'Save' and 'Discard' (which affect the
entire comment) were on the left, whereas toggling the resolved state
was on the right. This change flips these alignments.
Bug: Issue 5924
Change-Id: Id00e19d662a983fad071df0fb866052b2001beb4
15cdbd4bd1