BranchWatch: Extract shared function logic

IsolateWasOverwritten and IsolateNotOverwritten share the same basic
logic and have almost exactly the same code, with the only difference
being the comparison function used to keep or discard branches. To avoid
unnecessary code duplication and ensure that the functions stay in sync
after any future changes, create a helper function that takes the
comparison function as a parameter and have IsolateWasOverwritten and
IsolateNotOverwritten call that helper.

0 files changed, 0 insertions, 0 deletions