Refactor: Rename codegenModuleName to hasteModuleName

Summary:
In our Codegen generators, we were using `codegenModuleName` to refer to the name of the spec file. Calling this `hasteModuleName` makes it more clear what this name refers to (i.e: the name of the spec file). This diff performs that rename.

Changelog: [Internal]

Reviewed By: fkgozali

Differential Revision: D24386282

fbshipit-source-id: fe2beda9a0abf63a5cf88fa0664f83416c9f1aa2

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

@@ -278,17 +278,17 @@ module.exports = {
     const packageName = 'com.facebook.fbreact.specs.beta';
     const nativeModules = getModules(schema);
 
-    Object.keys(nativeModules).forEach(codegenModuleName => {
+    Object.keys(nativeModules).forEach(hasteModuleName => {
       const {
         aliases,
         excludedPlatforms,
         spec: {properties},
-      } = nativeModules[codegenModuleName];
+      } = nativeModules[hasteModuleName];
       if (excludedPlatforms != null && excludedPlatforms.includes('android')) {
         return;
       }
       const resolveAlias = createAliasResolver(aliases);
-      const className = `${codegenModuleName}Spec`;
+      const className = `${hasteModuleName}Spec`;
 
       const imports: Set<string> = new Set([
         // Always required.