refactor(@angular/build): relocate oxc-transform to dedicated oxc directory

Moves oxc-transform implementation and its associated test files out of tools/babel/plugins into tools/oxc/ and exports oxcTransform from private entry point.

Author: alan-agius4

packages/angular/build/src/private.ts

@@ -42,6 +42,9 @@ export { Cache } from './tools/esbuild/cache';
 export { createJitResourceTransformer } from './tools/angular/transformers/jit-resource-transformer';
 export { JavaScriptTransformer } from './tools/esbuild/javascript-transformer';
 
+// Needed for angular/angular/devtools
+export { transform as oxcTransform } from './tools/oxc/oxc-transform';
+
 export function createCompilerPlugin(
   pluginOptions: CompilerPluginOptions & {
     browserOnlyBuild?: boolean;

packages/angular/build/src/tools/esbuild/javascript-transformer-worker.ts

@@ -162,7 +162,7 @@ async function transformJavaScriptImpl(
 
   // Run advanced optimizations using our fast oxc-transform
   if (options.advancedOptimizations) {
-    const { transform } = await import('../babel/plugins/oxc-transform.js');
+    const { transform } = await import('../oxc/oxc-transform.js');
     const sideEffectFree = options.sideEffects === false;
     const safeAngularPackage =
       sideEffectFree && /[\\/]node_modules[\\/]@angular[\\/]/.test(filename);

…/adjust-static-class-members_oxc_spec.ts …/adjust-static-class-members_oxc_spec.tspackages/angular/build/src/tools/babel/plugins/adjust-static-class-members_oxc_spec.ts renamed to packages/angular/build/src/tools/oxc/adjust-static-class-members_oxc_spec.ts packages/angular/build/src/tools/babel/plugins/adjust-static-class-members_oxc_spec.ts renamed to packages/angular/build/src/tools/oxc/adjust-static-class-members_oxc_spec.ts

@@ -10,7 +10,7 @@ import remapping, { type EncodedSourceMap } from '@ampproject/remapping';
 import type { BindingIdentifier, Class, Node } from '@oxc-project/types';
 import { MagicString } from 'magic-string';
 import { Visitor, parseSync } from 'oxc-parser';
-import { loadInputSourceMap } from '../../../utils/source-map';
+import { loadInputSourceMap } from '../../utils/source-map';
 
 export interface OxcTransformOptions {
   sourcemap?: boolean;
@@ -261,7 +261,6 @@ export function transform(filename: string, code: string, options: OxcTransformO
   const s = new MagicString(code);
 
   const sideEffectFree = options.sideEffects === false;
-  const safeAngularPackage = sideEffectFree && /[\\/]node_modules[\\/]@angular[\\/]/.test(filename);
   const topLevelSafeMode = options.topLevelSafeMode ?? false;
   const wrapDecorators = sideEffectFree;
   const pureAnnotate = options.pureAnnotate ?? true;