compare-disco: support for `file` nodes specification
This leverage the `nodefromfile` feature in core. This make it possible for
callers to no longer pay the subset computation cost (and to make sure the
subset is the right one, even when the base repository is different)
BasedOnStyle: LLVM
IndentWidth: 8
UseTab: ForIndentation
BreakBeforeBraces: Linux
AllowShortIfStatementsOnASingleLine: false
IndentCaseLabels: false
AllowShortBlocksOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
IncludeCategories:
- Regex: '^<'
Priority: 1
- Regex: '^"'
Priority: 2