Projucer: Tidy up a couple of places not using ValueWithDefault objects in the Xcode exporter

extras/Projucer/Source/ProjectSaving/jucer_ProjectExport_Xcode.h

@@ -158,6 +158,10 @@ public:
     bool isDocumentBrowserEnabled() const              { return uiSupportsDocumentBrowserValue.get(); }
     bool isStatusBarHidden() const                     { return uiStatusBarHiddenValue.get(); }
 
+    String getDocumentExtensionsString() const         { return documentExtensionsValue.get(); }
+
+    bool shouldKeepCustomXcodeSchemes() const          { return keepCustomXcodeSchemesValue.get(); }
+
     String getIosDevelopmentTeamIDString() const       { return iosDevelopmentTeamIDValue.get(); }
     String getAppGroupIdString() const                 { return iosAppGroupsIDValue.get(); }
 
@@ -1466,8 +1470,8 @@ public:
             addPlistDictionaryKey (dict, "NSHumanReadableCopyright",    owner.project.getCompanyCopyrightString());
             addPlistDictionaryKeyBool (dict, "NSHighResolutionCapable", true);
 
-            auto documentExtensions = StringArray::fromTokens (replacePreprocessorDefs (owner.getAllPreprocessorDefs(), owner.settings ["documentExtensions"]),
-                                                               ",", {});
+            auto documentExtensions = StringArray::fromTokens (replacePreprocessorDefs (owner.getAllPreprocessorDefs(),
+                                                                                        owner.getDocumentExtensionsString()), ",", {});
             documentExtensions.trim();
             documentExtensions.removeEmptyStrings (true);
 
@@ -3265,7 +3269,7 @@ private:
     //==============================================================================
     void removeMismatchedXcuserdata() const
     {
-        if (settings ["keepCustomXcodeSchemes"])
+        if (shouldKeepCustomXcodeSchemes())
             return;
 
         auto xcuserdata = getProjectBundle().getChildFile ("xcuserdata");