toSignal's runtime error message does not get tree shaken away in prod build #57034
Description
Which @angular/* package(s) are the source of the bug?
core
Is this a regression?
No
Description
Creating a prod build of an app that uses toSignal keeps the error message of the runtime exception.
(typeof ngDevMode === 'undefined' || ngDevMode) &&is missing from the source code.
Please provide a link to a minimal reproduction of the bug
Please provide the exception or error you saw
No response
Please provide the environment you discovered this bug in (run ng version)
Angular CLI: 18.0.6
Node: 20.11.0
Package Manager: npm 10.7.0
OS: win32 x64
Angular: 18.0.5
... animations, cdk, common, compiler, compiler-cli, core, forms
... language-service, material, platform-browser
... platform-browser-dynamic, router
Package Version
---------------------------------------------------------
@angular-devkit/architect 0.1800.6
@angular-devkit/build-angular 18.0.6
@angular-devkit/core 18.0.6
@angular-devkit/schematics 18.0.6
@angular/cli 18.0.6
@schematics/angular 18.0.6
ng-packagr 18.0.0
rxjs 7.8.1
typescript 5.4.5
zone.js 0.14.4
Anything else?
As it has a comment "// This shouldn't really happen because the error is thrown on creation.", it's really just unnecessary characters.