rename module exports from "aliases" to "aliasMap" (#36042)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/36042

Pull Request resolved: https://github.com/facebook/react-native/pull/36028

Use aliasMap both in parsers and generators instead of using aliasMap in half of the places and aliases in the other.

This would also allow us to introduce "enumMap" more easily in the next commit.

Changelog: [Internal] rename module exports from "aliases" to "aliasMap"

Reviewed By: christophpurrer, cipolleschi

Differential Revision: D42888752

fbshipit-source-id: cf1929fcebde994d07e5c6bda5ab71106d417b21

packages/react-native-codegen/src/generators/modules/GenerateModuleJavaSpec.js

@@ -447,7 +447,7 @@ module.exports = {
 
     Object.keys(nativeModules).forEach(hasteModuleName => {
       const {
-        aliases,
+        aliasMap,
         excludedPlatforms,
         moduleName,
         spec: {properties},
@@ -455,7 +455,7 @@ module.exports = {
       if (excludedPlatforms != null && excludedPlatforms.includes('android')) {
         return;
       }
-      const resolveAlias = createAliasResolver(aliases);
+      const resolveAlias = createAliasResolver(aliasMap);
       const className = `${hasteModuleName}Spec`;
 
       const imports: Set<string> = new Set([