and `UastInjectionHostReferenceProvider` takes `PsiLanguageInjectionHost` from context

[uast] `UastReferenceProviderAdapter` checks that references were added to the requested PSI element

The commit is intended to split single `searchableOptions.xml` between modules, so it's possible for a plugin to provide its own searchable options. As a side effect, searchable options from disabled plugins aren't loaded.

In the simple case, a configurable is created directly by a plugin, so it's possible to associate it with a module easily. In the more complex case, a configurable is created by the platform using a provider so the provider should be used to create an association. The new `com.intellij.openapi.options.SearchableConfigurable#getOriginalClass` method is intended to be a bridge between the configurable and the provider. Sometimes several providers are used to create a single configurable. In this case, `com.intellij.openapi.options.CompositeConfigurable` should be extended by the configurable to provide an access to sub-configurables.

The build procedure is changed in a way that it adds newly created searchable options to appropriate j...

move Toolbox Lite-Gen related parameters away from BuildOptions.gradle. Inline more variables to shorten the code.

This gives developers more clue how to customize handling when restart the run configuration not allowing running in parallel.

ICS: JBA frontend must not require to disable Settings Repository plugin because Settings Repository supports also read-only repositories

extract isRoamable (prepare to maybe fix IDEA-202548 No export/import settings when IDE settings sync is enabled)

IDEA-201280 QuickDoc popup appears at the cursor position after closing the documentation tab in Tool Window