[JS IR] Add option for dce mode
[JS IR] Add logging to non useful declarations if appropriate dce mode
[JS IR] Add mode with throwing exception
[JS IR] unreachableDeclaration method is in rootDeclarations
[JS IR] Add js extra help arg with dce mode and include debug.kt to compile unreachableMethod
[JS IR] unreachableDeclaration as internal to not reproduce stdlib api
[JS IR] Fix description of dce mode argument
- Use console.error instead of console.log
- Use JsError instead Kotlin exception for lightweight
[JS IR] Remove body for throwing exception
[JS IR] Remove default parameter in unreachableDeclaration
[JS IR] Process without removing fields and declaration containers
[JS IR] Rename dce mode on dce runtime diagnostic
[JS IR] Use console.trace instead of console.error
[JS IR] Extract JsError
- Fix naming in prependFunctionCall
- Fix description on runtime diagnostic argument
- Using message collector instead of throwing exception
[JS IR] Distinguish unreachableMethods for log and exception
[JS IR] Extract checking of Kotlin packages of IrField
^KT-45059 fixed