[ivy] ng new ivy4ever --experimentalIvy=true doesn't add aot: true option

[wKoza]

🚀 Feature request

Command (mark with an x)

- [X] new
- [ ] build
- [ ] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Is this a regression?

Yes, the previous version in which this bug was not present was: ....

Description

When I run this command:

ng new ivy4ever --experimentalIvy=true

I notice that the postInstall script isn't added to the package.json file.
Futhermore, should not we add the property aot: true to angular.json ?

"architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "aot": true,
...

🔬 Minimal Reproduction

ng new ivy4ever --experimentalIvy=true

🌍 Your Environment

Angular CLI: 7.2.4
Node: 10.10.0
OS: darwin x64
Angular: 7.2.4
... animations, cli, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.12.4
@angular-devkit/build-angular     0.12.4
@angular-devkit/build-optimizer   0.12.4
@angular-devkit/build-webpack     0.12.4
@angular-devkit/core              7.2.4
@angular-devkit/schematics        7.2.4
@ngtools/webpack                  7.2.4
@schematics/angular               7.2.4
@schematics/update                0.12.4
rxjs                              6.3.3
typescript                        3.2.4
webpack                           4.28.4

Anything else relevant?

[alan-agius4]

@wKoza, you need to generate the project, using the latest version to the CLI. As the post install feature was introduced in 7.3.0.

With regards to the aot option, I am assuming that you want to turn this on, to use the ngtsc compiler in dev mode. I'm not sure, if we should do this by default. Maybe @filipesilva knows more about this as he is currently working on some Ivy stuff.

[wKoza]

arff OK perfect. With regards to the aot option, I refer, indeed, to the work of @filipesilva in this PR .
=> I change my title / description

[filipesilva]

@wKoza we don't yet add aot: true here because we've identified a performance regression, but the plan is still to add it for 8.0

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