angular: Defer syntax doesn't create lazy chunks when component imported from a barrel

Which @angular/* package(s) are the source of the bug?

compiler

Is this a regression?

No

Description

When using the new defer syntax with component imported from a barrel file (like a index.ts with re-exports) the expected lazy-loaded chunks are not created. Instead, the component is included in the main bundle, which contradicts the intended lazy loading behavior.

Steps to Reproduce

• Create two components
• Create index.ts file which re-exports them both
• Import both components to the parent using index.ts file
• Add both components to the imports section of parent component
• Use both components in the template
• Wrap one of them to defer block

Expected behavior

After the build process, the dist directory should contain a lazy-loaded chunk that includes the component wrapper to the defer block.

Actual Behavior

No lazy-loaded chunks are created. Both components is bundled in the main chunk.

Please provide a link to a minimal reproduction of the bug

https://github.com/mdafanasev/angular-defer-barrel-file-issue

Please provide the exception or error you saw

No response

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 17.0.0-rc.3
Node: 18.18.2
Package Manager: npm 9.7.2
OS: linux x64

Angular: 17.0.0-rc.2
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1700.0-rc.3
@angular-devkit/build-angular   17.0.0-rc.3
@angular-devkit/core            17.0.0-rc.3
@angular-devkit/schematics      17.0.0-rc.3
@angular/cli                    17.0.0-rc.3
@schematics/angular             17.0.0-rc.3
rxjs                            7.8.1
typescript                      5.2.2
zone.js                         0.14.2

Anything else?

No response