Comments break if else chains

[Ookamini95]

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

Don't known / other

Is this a regression?

Don't known / other

Description

    @if(foo1) {
      // something
    }
    <!-- TODO: totally legit todo -->
    @else if (foo2) {
       // something
    }

i get error:
@else if block can only be used after an @if or @else if block.

expected behaviour : ignores comment

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

@else if block can only be used after an @if or @else if block.

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

Angular CLI: 17.3.2
Node: 20.10.0
Package Manager: npm 10.3.0
OS: win32 x64

Angular: 17.3.2
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1703.2
@angular-devkit/build-angular   17.3.2
@angular-devkit/core            17.3.2
@angular-devkit/schematics      17.3.2
@schematics/angular             17.3.2
rxjs                            7.8.1
typescript                      5.3.3
zone.js                         0.14.4

Anything else?

If pointed to the right file i may be able to provide a pr (beginner here)

[JoostK]

It would likely be similar to #52449, but I suppose @crisbeto has a fix faster than the blink of an eye.

[Ookamini95]

It would likely be similar to #52449, but I suppose @crisbeto has a fix faster than the blink of an eye.

Thanks for the fast response, and sorry for the duplicate, it's my first actual bug report and was eager to share.

[JoostK]

It's not a duplicate, only a link to a prior PR that started to account for comments in some places, but not this one.

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