[IDE] Propagate KotlinFacetSettings version and completely drop isReleaseCoroutines flag

Also this commit removes number of tests related to support
  experimental coroutines

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IdeaResolverForProject.kt

@@ -43,7 +43,6 @@ class IdeaResolverForProject(
     private val syntheticFilesByModule: Map<IdeaModuleInfo, Collection<KtFile>>,
     delegateResolver: ResolverForProject<IdeaModuleInfo>,
     fallbackModificationTracker: ModificationTracker? = null,
-    private val isReleaseCoroutines: Boolean? = null,
     // TODO(dsavvinov): this is needed only for non-composite analysis, extract separate resolver implementation instead
     private val constantSdkDependencyIfAny: SdkInfo? = null
 ) : AbstractResolverForProject<IdeaModuleInfo>(

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/KotlinCacheServiceImpl.kt

@@ -80,20 +80,16 @@ internal val LOG = Logger.getInstance(KotlinCacheService::class.java)
  *   This mode is currently enabled only for HMPP projects
  */
 sealed class PlatformAnalysisSettings {
-    // Effectively unused as a property. Needed only to distinguish different modes when being put in a map
-    abstract val isReleaseCoroutines: Boolean
-
     companion object {
         fun create(
             project: Project,
             platform: TargetPlatform,
             sdk: Sdk?,
-            isAdditionalBuiltInFeaturesSupported: Boolean,
-            isReleaseCoroutines: Boolean
+            isAdditionalBuiltInFeaturesSupported: Boolean
         ) = if (project.useCompositeAnalysis)
-            CompositeAnalysisSettings(isReleaseCoroutines)
+            CompositeAnalysisSettings
         else
-            PlatformAnalysisSettingsImpl(platform, sdk, isAdditionalBuiltInFeaturesSupported, isReleaseCoroutines)
+            PlatformAnalysisSettingsImpl(platform, sdk, isAdditionalBuiltInFeaturesSupported)
     }
 }
 
@@ -101,11 +97,9 @@ data class PlatformAnalysisSettingsImpl(
     val platform: TargetPlatform,
     val sdk: Sdk?,
     val isAdditionalBuiltInFeaturesSupported: Boolean,
-    override val isReleaseCoroutines: Boolean
 ) : PlatformAnalysisSettings()
 
-data class CompositeAnalysisSettings(override val isReleaseCoroutines: Boolean) : PlatformAnalysisSettings() {
-}
+object CompositeAnalysisSettings : PlatformAnalysisSettings()
 
 class KotlinCacheServiceImpl(val project: Project) : KotlinCacheService {
     override fun getResolutionFacade(elements: List<KtElement>): ResolutionFacade {
@@ -149,10 +143,7 @@ class KotlinCacheServiceImpl(val project: Project) : KotlinCacheService {
     ): ProjectResolutionFacade {
         val sdk = dependenciesModuleInfo.sdk
         val platform = JvmPlatforms.defaultJvmPlatform // TODO: Js scripts?
-        val settings = PlatformAnalysisSettings.create(
-            project, platform, sdk, true,
-            LanguageFeature.ReleaseCoroutines.defaultState == LanguageFeature.State.ENABLED
-        )
+        val settings = PlatformAnalysisSettings.create(project, platform, sdk, true)
 
         val dependenciesForScriptDependencies = listOf(
             LibraryModificationTracker.getInstance(project),
@@ -227,16 +218,9 @@ class KotlinCacheServiceImpl(val project: Project) : KotlinCacheService {
 
     private fun IdeaModuleInfo.platformSettings(targetPlatform: TargetPlatform) = PlatformAnalysisSettings.create(
         this@KotlinCacheServiceImpl.project, targetPlatform, sdk,
-        supportsAdditionalBuiltInsMembers(this@KotlinCacheServiceImpl.project),
-        isReleaseCoroutines()
+        supportsAdditionalBuiltInsMembers(this@KotlinCacheServiceImpl.project)
     )
 
-    private fun IdeaModuleInfo.isReleaseCoroutines(): Boolean {
-        return IDELanguageSettingsProvider
-            .getLanguageVersionSettings(this, this@KotlinCacheServiceImpl.project)
-            .supportsFeature(LanguageFeature.ReleaseCoroutines)
-    }
-
     private fun facadeForModules(settings: PlatformAnalysisSettings) =
         getOrBuildGlobalFacade(settings).facadeForModules
 

idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/ProjectResolutionFacade.kt

@@ -122,7 +122,6 @@ internal class ProjectResolutionFacade(
             syntheticFilesByModule,
             delegateResolverForProject,
             if (invalidateOnOOCB) KotlinModificationTrackerService.getInstance(project).outOfBlockModificationTracker else null,
-            settings.isReleaseCoroutines,
             constantSdkDependencyIfAny = if (settings is PlatformAnalysisSettingsImpl) settings.sdk?.let { SdkInfo(project, it) } else null
         )