Cleanup react-native-codegen DEFS [reland] (#52506)

Summary:
Pull Request resolved: #52506

* Re-enable tests
* Simplify logic to avoid bypasses for arc focus

Changelog: [Internal]

Reviewed By: christophpurrer

Differential Revision: D78000411

fbshipit-source-id: e2960a9848ce27385da00214018e7996d7c27561

Author: javache

packages/react-native-codegen/src/cli/combine/combine-schemas-cli.js

@@ -51,12 +51,13 @@ if (!schemaQuery.startsWith('@')) {
 const schemaQueryOutputFile = schemaQuery.replace(/^@/, '');
 const schemaQueryOutput = fs.readFileSync(schemaQueryOutputFile, 'utf8');
 
-const schemaFiles = schemaQueryOutput.split(' ');
 const modules: {
   [hasteModuleName: string]: NativeModuleSchema | ComponentSchema,
 } = {};
 const specNameToFile: {[hasteModuleName: string]: string} = {};
 
+const schemaFiles =
+  schemaQueryOutput.length > 0 ? schemaQueryOutput.split(' ') : [];
 for (const file of schemaFiles) {
   const schema: SchemaType = JSON.parse(fs.readFileSync(file, 'utf8'));
 

packages/react-native-codegen/src/generators/components/GenerateTests.js

@@ -65,15 +65,15 @@ const TestTemplate = ({
   propValue: string,
 }) => `
 TEST(${componentName}_${testName}, etc) {
-  auto propParser = RawPropsParser();
+  RawPropsParser propParser{};
   propParser.prepare<${componentName}>();
-  auto const &sourceProps = ${componentName}();
-  auto const &rawProps = RawProps(folly::dynamic::object("${propName}", ${propValue}));
+  ${componentName} sourceProps{};
+  RawProps rawProps(folly::dynamic::object("${propName}", ${propValue}));
 
   ContextContainer contextContainer{};
   PropsParserContext parserContext{-1, contextContainer};
 
-  rawProps.parse(propParser, parserContext);
+  rawProps.parse(propParser);
   ${componentName}(parserContext, sourceProps, rawProps);
 }
 `;