chor: minor rename

Author: ddfreiling

flutter_readium/ios/flutter_readium/Sources/flutter_readium/model/FlutterMediaOverlay.swift

@@ -131,7 +131,7 @@ final class FlutterMediaOverlayItem: NSObject {
   }
 
   // MARK: Locators
-  var textLocator: Locator? {
+  var asTextLocator: Locator? {
     guard
       let href = URL(string: text.split(separator: "#", maxSplits: 1).first.map(String.init) ?? "")
     else { return nil }
@@ -150,7 +150,7 @@ final class FlutterMediaOverlayItem: NSObject {
     return locator
   }
 
-  var audioLocator: Locator? {
+  var asAudioLocator: Locator? {
     guard let href = URL(string: audioFile) else { return nil }
     let start = audioStart ?? 0.0
     return Locator(

flutter_readium/ios/flutter_readium/Sources/flutter_readium/navigator/FlutterMediaOverlayNavigator.swift

@@ -88,7 +88,7 @@ public class FlutterMediaOverlayNavigator : FlutterAudioNavigator
     if let timeOffsetStr = location.locations.fragments.first(where: { $0.starts(with: "t=") })?.dropFirst(2),
        let timeOffset = Double(timeOffsetStr),
        let mediaOverlay = mediaOverlays.first(where: { $0.itemInRangeOfTime(timeOffset, inHref:  location.href.string) }),
-       var textLocator = mediaOverlay.textLocator {
+       var textLocator = mediaOverlay.asTextLocator {
       if (!mediaOverlay.isEqual(lastMediaOverlayItem)) {
         // Matched a new MediaOverlayItem -> sync reader with its textLocator.
         lastMediaOverlayItem = mediaOverlay
@@ -107,7 +107,7 @@ public class FlutterMediaOverlayNavigator : FlutterAudioNavigator
   internal func mapTextLocatorToMediaOverlayLocator(_ textLocator: Locator?) -> Locator? {
     guard let textLocator = textLocator,
           let matchingItem = self.mediaOverlays.firstMap({ $0.itemFromLocator(textLocator)}),
-          let audioLocator = matchingItem.audioLocator else {
+          let audioLocator = matchingItem.asAudioLocator else {
       return nil
     }
     return audioLocator