     let diags = info.diagnosticEngine
     var allFound = true
     for input in info.inputFiles {
-      if let source = ofm.dependencySource(for: input, diagnosticEngine: diags) {
+      if let source = ofm.getDependencySource(for: input, diagnosticEngine: diags) {
         inputDependencySourceMap.addEntry(input, source, for: purpose)
-      } else {
+      }
+      else {
         // Don't break in order to report all failures.
         allFound = false
       }

  ) -> TransitivelyInvalidatedInputSet? {
    var invalidatedInputs = TransitivelyInvalidatedInputSet()
    for invalidatedSwiftDeps in collectSwiftDepsUsingInvalidated(nodes: directlyInvalidatedNodes) {
      guard let invalidatedInput = input(neededFor: invalidatedSwiftDeps) else {
        return nil
      }
      invalidatedInputs.insert(invalidatedInput)

  }
}
extension OutputFileMap {
  fileprivate func getDependencySource(
    for sourceFile: TypedVirtualPath,
    diagnosticEngine: DiagnosticsEngine
  ) -> DependencySource? {
