Add correct mapping of module descriptor to implementedDescriptor

Now implements dependency is taken into account here
Old commonModuleOrNull() was deleted
Test (JVM + 2xCommon) was added

idea/src/org/jetbrains/kotlin/idea/facet/facetUtils.kt

@@ -130,16 +130,17 @@ private fun Module.findImplementingModules(modelsProvider: IdeModifiableModelsPr
     }
 }
 
+private fun Module.getModuleInfo(baseModuleSourceInfo: ModuleSourceInfo): ModuleSourceInfo? =
+        when (baseModuleSourceInfo) {
+            is ModuleProductionSourceInfo -> productionSourceInfo()
+            is ModuleTestSourceInfo -> testSourceInfo()
+            else -> null
+        }
+
 private fun Module.findImplementingModuleInfos(moduleSourceInfo: ModuleSourceInfo): List<ModuleSourceInfo> {
     val modelsProvider = IdeModifiableModelsProviderImpl(project)
     val implementingModules = findImplementingModules(modelsProvider)
-    return implementingModules.mapNotNull {
+    return implementingModules.mapNotNull { it.getModuleInfo(moduleSourceInfo) }
-        when (moduleSourceInfo) {
-            is ModuleProductionSourceInfo -> it.productionSourceInfo()
-            is ModuleTestSourceInfo -> it.testSourceInfo()
-            else -> null
-        }
-    }
 }
 
 val ModuleDescriptor.implementingDescriptors: List<ModuleDescriptor>
@@ -159,6 +160,20 @@ val ModuleDescriptor.implementingDescriptors: List<ModuleDescriptor>
         })
     }
 
+val ModuleDescriptor.implementedDescriptor: ModuleDescriptor?
+    get() {
+        val moduleSourceInfo = getCapability(ModuleInfo.Capability) as? ModuleSourceInfo ?: return null
+        val module = moduleSourceInfo.module
+
+        val modelsProvider = IdeModifiableModelsProviderImpl(module.project)
+        val implementedModuleName = module.findImplementedModuleName(modelsProvider)
+        val implementedModule = implementedModuleName?.let { modelsProvider.findIdeModule(it) }
+        val implementedModuleInfo = implementedModule?.getModuleInfo(moduleSourceInfo)
+        return implementedModuleInfo?.let {
+            KotlinCacheService.getInstance(module.project).getResolutionFacadeByModuleInfo(it, it.platform)?.moduleDescriptor
+        }
+    }
+
 fun Module.getOrCreateFacet(modelsProvider: IdeModifiableModelsProvider,
                             useProjectSettings: Boolean,
                             commitModel: Boolean = false): KotlinFacet {

idea/src/org/jetbrains/kotlin/idea/highlighter/markers/HasExpectedMarker.kt

@@ -16,41 +16,21 @@
 
 package org.jetbrains.kotlin.idea.highlighter.markers
 
-import org.jetbrains.kotlin.analyzer.ModuleInfo
 import org.jetbrains.kotlin.descriptors.*
-import org.jetbrains.kotlin.idea.caches.resolve.ModuleProductionSourceInfo
-import org.jetbrains.kotlin.idea.caches.resolve.ModuleTestSourceInfo
 import org.jetbrains.kotlin.idea.caches.resolve.findModuleDescriptor
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptorIfAny
 import org.jetbrains.kotlin.idea.core.toDescriptor
+import org.jetbrains.kotlin.idea.facet.implementedDescriptor
 import org.jetbrains.kotlin.idea.search.usagesSearch.descriptor
 import org.jetbrains.kotlin.psi.KtClassOrObject
 import org.jetbrains.kotlin.psi.KtDeclaration
 import org.jetbrains.kotlin.psi.psiUtil.containingClassOrObject
 import org.jetbrains.kotlin.psi.psiUtil.hasExpectModifier
 import org.jetbrains.kotlin.resolve.DescriptorToSourceUtils
-import org.jetbrains.kotlin.resolve.MultiTargetPlatform
 import org.jetbrains.kotlin.resolve.checkers.ExpectedActualDeclarationChecker
 import org.jetbrains.kotlin.resolve.descriptorUtil.module
-import org.jetbrains.kotlin.resolve.getMultiTargetPlatform
 import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
-val ModuleDescriptor.sourceKind: SourceKind
-    get() = when (getCapability(ModuleInfo.Capability)) {
-        is ModuleProductionSourceInfo -> SourceKind.PRODUCTION
-        is ModuleTestSourceInfo -> SourceKind.TEST
-        else -> SourceKind.OTHER
-    }
-
-enum class SourceKind { OTHER, PRODUCTION, TEST }
-
-fun ModuleDescriptor.commonModuleOrNull(): ModuleDescriptor? {
-    val sourceKind = sourceKind
-    return allDependencyModules.firstOrNull { dependency ->
-        dependency.getMultiTargetPlatform() == MultiTargetPlatform.Common && dependency.sourceKind == sourceKind
-    }
-}
-
 fun ModuleDescriptor.hasDeclarationOf(descriptor: MemberDescriptor) = declarationOf(descriptor) != null
 
 private fun ModuleDescriptor.declarationOf(descriptor: MemberDescriptor): DeclarationDescriptor? =
@@ -62,7 +42,7 @@ fun getExpectedDeclarationTooltip(declaration: KtDeclaration?): String? {
     val descriptor = declaration?.toDescriptor() as? MemberDescriptor ?: return null
     val platformModuleDescriptor = declaration.containingKtFile.findModuleDescriptor()
 
-    val commonModuleDescriptor = platformModuleDescriptor.commonModuleOrNull() ?: return null
+    val commonModuleDescriptor = platformModuleDescriptor.implementedDescriptor ?: return null
     if (!commonModuleDescriptor.hasDeclarationOf(descriptor)) return null
 
     return "Has declaration in common module"
@@ -72,7 +52,7 @@ fun navigateToExpectedDeclaration(declaration: KtDeclaration?) {
     declaration?.expectedDeclarationIfAny()?.navigate(false)
 }
 
-internal fun MemberDescriptor.expectedDescriptor() = module.commonModuleOrNull()?.declarationOf(this)
+internal fun MemberDescriptor.expectedDescriptor() = module.implementedDescriptor?.declarationOf(this)
 
 internal fun KtDeclaration.expectedDeclarationIfAny(): KtDeclaration? {
     val expectedDescriptor = (toDescriptor() as? MemberDescriptor)?.expectedDescriptor() ?: return null

idea/src/org/jetbrains/kotlin/idea/highlighter/markers/KotlinLineMarkerProvider.kt

@@ -44,6 +44,7 @@ import org.jetbrains.kotlin.idea.caches.resolve.findModuleDescriptor
 import org.jetbrains.kotlin.idea.core.isInheritable
 import org.jetbrains.kotlin.idea.core.isOverridable
 import org.jetbrains.kotlin.idea.core.toDescriptor
+import org.jetbrains.kotlin.idea.facet.implementedDescriptor
 import org.jetbrains.kotlin.idea.facet.implementingDescriptors
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
 import org.jetbrains.kotlin.lexer.KtTokens
@@ -325,7 +326,7 @@ private fun collectExpectedMarkers(declaration: KtNamedDeclaration,
 
     val descriptor = declaration.toDescriptor() as? MemberDescriptor ?: return
     val platformModuleDescriptor = declaration.containingKtFile.findModuleDescriptor()
-    val commonModuleDescriptor = platformModuleDescriptor.commonModuleOrNull() ?: return
+    val commonModuleDescriptor = platformModuleDescriptor.implementedDescriptor ?: return
     if (!commonModuleDescriptor.hasDeclarationOf(descriptor)) return
 
     val anchor = declaration.expectOrActualAnchor

idea/testData/multiModuleLineMarker/transitiveCommon/common_base/base.kt

@@ -0,0 +1,3 @@
+// !CHECK_HIGHLIGHTING
+
+class Some

idea/testData/multiModuleLineMarker/transitiveCommon/common_user/user.kt

@@ -0,0 +1,5 @@
+// !CHECK_HIGHLIGHTING
+
+expect class Expected {
+    val some: Some
+}

idea/testData/multiModuleLineMarker/transitiveCommon/jvm/jvm.kt

@@ -0,0 +1,3 @@
+actual class <lineMarker>Expected</lineMarker> {
+    actual val <lineMarker>some</lineMarker> = Some()
+}

idea/tests/org/jetbrains/kotlin/idea/caches/resolve/MultiModuleLineMarkerTest.kt

@@ -121,6 +121,25 @@ class MultiModuleLineMarkerTest : AbstractMultiModuleHighlightingTest() {
         checkHighlightingInAllFiles()
     }
 
+    fun testTransitiveCommon() {
+        val commonBaseModule = module("common_base", TestJdkKind.MOCK_JDK)
+        commonBaseModule.createFacet(TargetPlatformKind.Common, false)
+
+        val commonUserModule = module("common_user", TestJdkKind.MOCK_JDK)
+        commonUserModule.createFacet(TargetPlatformKind.Common, false)
+        commonUserModule.enableMultiPlatform()
+        commonUserModule.addDependency(commonBaseModule)
+
+        val jvmPlatform = TargetPlatformKind.Jvm[JvmTarget.JVM_1_6]
+        val jvmModule = module("jvm", TestJdkKind.MOCK_JDK)
+        jvmModule.createFacet(jvmPlatform, implementedModuleName = "common_user")
+        jvmModule.enableMultiPlatform()
+        jvmModule.addDependency(commonBaseModule)
+        jvmModule.addDependency(commonUserModule)
+
+        checkHighlightingInAllFiles()
+    }
+
     fun testWithOverloads() {
         doMultiPlatformTest(TargetPlatformKind.Jvm[JvmTarget.JVM_1_6])
     }