Issue 6559 - Replace fromObject with fromMap

test/filterStorage_readwrite.js

Index: test/filterStorage_readwrite.js
===================================================================
--- a/test/filterStorage_readwrite.js
+++ b/test/filterStorage_readwrite.js
@@ -96,17 +96,17 @@
 
   return testData.then(data =>
   {
     IO._setFileContents(FilterStorage.sourceFile, data);
     return FilterStorage.loadFromDisk();
   }).then(() =>
   {
     test.ok(FilterStorage.initialized, "Initialize after the first load");
-    test.equal(FilterStorage.fileProperties.version, FilterStorage.formatVersion, "File format version");
+    test.equal(FilterStorage.fileProperties.get("version"), FilterStorage.formatVersion, "File format version");
 
     if (withExternal)
     {
       {
         let subscription = new ExternalSubscription("~external~external subscription ID", "External subscription");
         subscription.filters = [Filter.fromText("foo"), Filter.fromText("bar")];
         FilterStorage.addSubscription(subscription);
       }
@@ -143,17 +143,17 @@
     if (lines.length && lines[lines.length - 1] == "")
       lines.pop();
 
     let importer = FilterStorage.importData();
     for (let line of lines)
       importer(line);
     importer(null);
 
-    test.equal(FilterStorage.fileProperties.version, FilterStorage.formatVersion, "File format version");
+    test.equal(FilterStorage.fileProperties.get("version"), FilterStorage.formatVersion, "File format version");
 
     let exported = Array.from(FilterStorage.exportData());
     test.deepEqual(canonize(exported), canonize(lines), "Import/export result");
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };
 
 exports.testSavingWithoutBackups = function(test)
 {