Use native Promise.try(), fix Components.utils.import()

scripts/migrate-fx140/README.txt

@@ -12,3 +12,6 @@ Zotero modifications:
 
 Run:
   scripts/migrate-fx140/migrate.py <esmify|asyncify> [file_or_dir]
+
+Special notes for esmify:
+  - If the script you're running on is a window/XPCOM script, not an MJS/ESM, pass --imports

scripts/migrate-fx140/bluebird-to-async.js

@@ -39,6 +39,7 @@ function doTranslate(inputFile, root) {
 			'race',
 			'reject',
 			'resolve',
+			'try',
 		]))
 		.forEach(path => {
 			let callee = path.node.callee;

scripts/migrate-fx140/import-to-import_esmodule.js

@@ -29,6 +29,15 @@ const {
 
 module.exports = function (fileInfo, api) {
   const { jscodeshift } = api;
+  
+  // Cheap hack:
+  // Zotero usually calls Components.utils.import(), not Cu.import().
+  // Those are the same thing, but this script can't rewrite the former
+  // to ChromeUtils.importESModule(), because it's unable to handle
+  // changing the number of property accesses in the chain.
+  // Just replace it in the text before parsing!
+  fileInfo.source = fileInfo.source.replace(/Components\.utils\.import\(/g, 'Cu.import(');
+  
   const root = jscodeshift(fileInfo.source);
   doTranslate(fileInfo.path, jscodeshift, root);
   return root.toSource({ useTabs: true, lineTerminator: "\n" });
@@ -61,10 +70,6 @@ const importCalls = [
     from: ["Cu", "import"],
     to: ["ChromeUtils", "importESModule"],
   },
-  {
-    from: ["Components", "utils", "import"],
-    to: ["ChromeUtils", "importESModule"],
-  },
   {
     from: ["ChromeUtils", "import"],
     to: ["ChromeUtils", "importESModule"],