ArgumentsInputField seem to misuse project field. Look: here you assign a new value to project every time someone calls update():

If the action is used in multiple projects simultaneously, this field will get changed often, and document changes may leak from one component to another one.

I recommend to create a separate implementation of DocumentListener which will capture the current Project.

WrappedEditorComboBox.isInitialized won't be required if you initialize it right after component creation. Override createCustomComponent(@NotNull Presentation presentation, @NotNull String place, @NotNull DataContext dataContext) overload to access dataContext.project in ArgumentsInputField, and that's it.

(minor) Instead of directly accessing project!!.getService(EzArgsService::class.java), better implement a static (companiuon object)_ method on EzArgsService. Like this:

class EzArgsService […] {
  companion object {
    fun getInstance(project: Project): EzArgsService  = project.service()
  }
}

EzArgsService::addToHistory and EzArgsService::addHistoryListener deserve to be guarded with application.assertIsDispatchThread().

It would be good design to add a Lifetime argument into EzArgsService::addHistoryListener. Something like this:

fun addHistoryListener(listener: HistoryListener, lifetime: Lifetime) {
   lifetime.bracket(
     { historyListeners.add(listener) },
     { historyListeners.remove(listener) }
   )
}

This will help to avoid memory leaks (when handlers are still subscribed on project dispose). In most places, it will be enough to pass project.lifetime as a second argument, and it will work well.

List<T>.lastOrElse could be implemented without throwing and catching exceptions:

inline fun <T> kotlin.collections.List<T>.lastOrElse(defaultValue: () -> T): T =
  lastOrNull() ?: defaultValue()