Invert conditions, invert decrement checks, and make conditional branches unconditional. USnapshotMetadata in prior versions of Dolphin is forward-compatible with these changes (tested on x86_64).
There were three distinct mechanisms for signaling symbol changes in DolphinQt: `Host::NotifyMapLoaded`, `MenuBar::NotifySymbolsUpdated`, and `CodeViewWidget::SymbolsChanged`. The behavior of these signals has been consolidated into the new `Host::PPCSymbolsUpdated` signal, which can be emitted from anywhere in DolphinQt to properly update symbols everywhere in DolphinQt.
Window icon was missing from QDialog lacking a parent.
Giving the QDialog a parent revealed I had failed to make it properly non-modal, necessitating further changes.
Settings save less often, now only upon destruction.
Construction of BranchWatchDialog is now deferred.
mitaclaw