[FIR] Add isCommon property to FirModuleData

It will be used for correct OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE reporting

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

@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.fir.moduleData
 import org.jetbrains.kotlin.fir.symbols.FirBasedSymbol
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.platform.TargetPlatform
+import org.jetbrains.kotlin.platform.isCommon
 import org.jetbrains.kotlin.resolve.PlatformDependentAnalyzerServices
 
 val FirElementWithResolveState.llFirModuleData: LLFirModuleData
@@ -49,6 +50,8 @@ class LLFirModuleData(
 
     override val platform: TargetPlatform get() = ktModule.platform
 
+    override val isCommon: Boolean get() = ktModule.platform.isCommon()
+
     override val analyzerServices: PlatformDependentAnalyzerServices get() = ktModule.analyzerServices
 
     override fun equals(other: Any?): Boolean {

compiler/cli/src/org/jetbrains/kotlin/cli/common/FirSessionConstructionUtils.kt

@@ -29,6 +29,7 @@ import org.jetbrains.kotlin.load.kotlin.PackageAndMetadataPartProvider
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.platform.CommonPlatforms
 import org.jetbrains.kotlin.platform.TargetPlatform
+import org.jetbrains.kotlin.platform.isCommon
 import org.jetbrains.kotlin.platform.js.JsPlatforms
 import org.jetbrains.kotlin.platform.jvm.JvmPlatforms
 import org.jetbrains.kotlin.platform.konan.NativePlatforms
@@ -392,7 +393,8 @@ private inline fun <F> createSessionsForLegacyMppProject(
         listOf(),
         libraryList.friendsDependencies,
         targetPlatform,
-        analyzerServices
+        analyzerServices,
+        isCommon = true
     )
 
     val platformModuleData = FirModuleDataImpl(
@@ -401,7 +403,8 @@ private inline fun <F> createSessionsForLegacyMppProject(
         listOf(commonModuleData),
         libraryList.friendsDependencies,
         targetPlatform,
-        analyzerServices
+        analyzerServices,
+        isCommon = false
     )
 
     val commonFiles = mutableListOf<F>()
@@ -438,7 +441,7 @@ private inline fun <F> createSessionsForHmppProject(
 ): List<SessionWithSources<F>> {
     val moduleDataForHmppModule = LinkedHashMap<HmppCliModule, FirModuleData>()
 
-    for (module in hmppModuleStructure.modules) {
+    for ((index, module) in hmppModuleStructure.modules.withIndex()) {
         val dependencies = hmppModuleStructure.dependenciesMap[module]
             ?.map { moduleDataForHmppModule.getValue(it) }
             .orEmpty()
@@ -448,7 +451,8 @@ private inline fun <F> createSessionsForHmppProject(
             dependsOnDependencies = dependencies,
             libraryList.friendsDependencies,
             targetPlatform,
-            analyzerServices
+            analyzerServices,
+            isCommon = index < hmppModuleStructure.modules.size - 1
         )
         moduleDataForHmppModule[module] = moduleData
     }

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirModuleData.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.fir
 import org.jetbrains.kotlin.fir.declarations.FirDeclaration
 import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.platform.TargetPlatform
+import org.jetbrains.kotlin.platform.isCommon
 import org.jetbrains.kotlin.resolve.PlatformDependentAnalyzerServices
 
 /**
@@ -38,6 +39,9 @@ import org.jetbrains.kotlin.resolve.PlatformDependentAnalyzerServices
  *   of IO operations and false matches. To solve this problem we use single session for all dependencies with single deserialized
  *   symbol provider. And during creation FIR for some declaration symbol provider chose which module this declaration will belong to
  *   basing on path of this declaration and passed compiler arguments
+ *
+ * With MPP mode, all modules have the same platform, but some checkers need info about whether the current module is common or not.
+ *   For this purpose the flag [isCommon] is used
  */
 abstract class FirModuleData : FirSessionComponent {
     abstract val name: Name
@@ -45,6 +49,7 @@ abstract class FirModuleData : FirSessionComponent {
     abstract val dependsOnDependencies: List<FirModuleData>
     abstract val friendDependencies: List<FirModuleData>
     abstract val platform: TargetPlatform
+    abstract val isCommon: Boolean
 
     // TODO: analyzerServices are needed only as default imports providers
     //   refactor them to make API clearer
@@ -77,7 +82,8 @@ class FirModuleDataImpl(
     override val friendDependencies: List<FirModuleData>,
     override val platform: TargetPlatform,
     override val analyzerServices: PlatformDependentAnalyzerServices,
-    override val capabilities: FirModuleCapabilities = FirModuleCapabilities.Empty
+    override val capabilities: FirModuleCapabilities = FirModuleCapabilities.Empty,
+    override val isCommon: Boolean = platform.isCommon(),
 ) : FirModuleData()
 
 val FirSession.nullableModuleData: FirModuleData? by FirSession.nullableSessionComponentAccessor()

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/FirFrontendFacade.kt

@@ -151,7 +151,8 @@ open class FirFrontendFacade(
                 dependsOnModules,
                 friendModules,
                 mainModule.targetPlatform,
-                mainModule.targetPlatform.getAnalyzerServices()
+                mainModule.targetPlatform.getAnalyzerServices(),
+                isCommon = module.targetPlatform.isCommon(),
             )
 
             moduleInfoProvider.registerModuleData(module, moduleData)