[LL FIR] refactoring, add service accessor for LLFirLibrarySymbolProviderFactory

^KT-61371

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/project/structure/LLFirLibrarySymbolProviderFactory.kt

@@ -5,6 +5,7 @@
 
 package org.jetbrains.kotlin.analysis.low.level.api.fir.project.structure
 
+import com.intellij.openapi.project.Project
 import com.intellij.psi.search.GlobalSearchScope
 import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.deserialization.SingleModuleDataProvider
@@ -21,6 +22,11 @@ abstract class LLFirLibrarySymbolProviderFactory {
         moduleDataProvider: SingleModuleDataProvider,
         firJavaFacade: FirJavaFacade,
         packagePartProvider: PackagePartProvider,
-        scope: GlobalSearchScope
+        scope: GlobalSearchScope,
     ): List<FirSymbolProvider>
+
+    companion object {
+        fun getService(project: Project): LLFirLibrarySymbolProviderFactory =
+            project.getService(LLFirLibrarySymbolProviderFactory::class.java)
+    }
 }

analysis/low-level-api-fir/src/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions/LLFirJvmSessionFactory.kt

@@ -104,7 +104,7 @@ internal class LLFirJvmSessionFactory(project: Project) : LLFirAbstractSessionFa
         val packagePartProvider = project.createPackagePartProvider(scope)
         return buildList {
             val firJavaFacade = LLFirJavaFacadeForBinaries(session, builtinTypes, project.createJavaClassFinder(scope), moduleDataProvider)
-            val deserializedSymbolProviderFactory = project.getService(LLFirLibrarySymbolProviderFactory::class.java)
+            val deserializedSymbolProviderFactory = LLFirLibrarySymbolProviderFactory.getService(project)
             addAll(
                 deserializedSymbolProviderFactory.createJvmLibrarySymbolProvider(
                     session,