Make code compilable
diff --git a/analysis/analysis-api-standalone/analysis-api-standalone-base/src/org/jetbrains/kotlin/analysis/api/standalone/base/declarations/KotlinStandaloneDeclarationProvider.kt b/analysis/analysis-api-standalone/analysis-api-standalone-base/src/org/jetbrains/kotlin/analysis/api/standalone/base/declarations/KotlinStandaloneDeclarationProvider.kt
index 27877de..7164cb4 100644
--- a/analysis/analysis-api-standalone/analysis-api-standalone-base/src/org/jetbrains/kotlin/analysis/api/standalone/base/declarations/KotlinStandaloneDeclarationProvider.kt
+++ b/analysis/analysis-api-standalone/analysis-api-standalone-base/src/org/jetbrains/kotlin/analysis/api/standalone/base/declarations/KotlinStandaloneDeclarationProvider.kt
@@ -16,10 +16,12 @@
 import com.intellij.psi.PsiManager
 import com.intellij.psi.SingleRootFileViewProvider
 import com.intellij.psi.search.GlobalSearchScope
+import com.intellij.psi.stubs.IStubElementType
 import com.intellij.psi.stubs.PsiFileStub
 import com.intellij.psi.stubs.StubElement
 import com.intellij.psi.stubs.StubInputStream
 import com.intellij.psi.stubs.StubOutputStream
+import com.intellij.psi.tree.StubFileElementType
 import com.intellij.util.indexing.FileContentImpl
 import com.intellij.util.io.AbstractStringEnumerator
 import com.intellij.util.io.StringRef
@@ -571,23 +573,25 @@
         )
 
         is PsiFileStub -> {
-            val serializer = originalStub.type
-            serializer.serialize(originalStub, StubOutputStream(buffer, storage))
+            @Suppress("UNCHECKED_CAST") val serializer = originalStub.type as StubFileElementType<T>
+            @Suppress("UNCHECKED_CAST")
+            serializer.serialize(originalStub as (T), StubOutputStream(buffer, storage))
             serializer.deserialize(StubInputStream(buffer.toInputStream(), storage), copyParentStub)
         }
 
         else -> {
-            val serializer = originalStub.stubType
-            serializer.serialize(originalStub, StubOutputStream(buffer, storage))
+            @Suppress("UNCHECKED_CAST") val serializer = originalStub.stubType as IStubElementType<T, *>
+            @Suppress("UNCHECKED_CAST")
+            serializer.serialize(originalStub as (T), StubOutputStream(buffer, storage))
             serializer.deserialize(StubInputStream(buffer.toInputStream(), storage), copyParentStub)
         }
     }
 
     for (originalChild in originalStub.childrenStubs) {
-        cloneStubRecursively(originalStub = originalChild, copyParentStub = copyStub, buffer = buffer, storage = storage)
+        cloneStubRecursively(originalStub = originalChild, copyParentStub = copyStub as StubElement<*>?, buffer = buffer, storage = storage)
     }
 
-    return copyStub
+    return copyStub as StubElement<*>
 }
 
 private class StringEnumerator : AbstractStringEnumerator {
diff --git a/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/parameters/SymbolLightTypeParameterList.kt b/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/parameters/SymbolLightTypeParameterList.kt
index 3ee2f40..a09aba4f 100644
--- a/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/parameters/SymbolLightTypeParameterList.kt
+++ b/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/parameters/SymbolLightTypeParameterList.kt
@@ -65,7 +65,7 @@
 
     override fun getTypeParameters(): Array<PsiTypeParameter> = _typeParameters.toArrayIfNotEmptyOrDefault(PsiTypeParameter.EMPTY_ARRAY)
 
-    override fun getTypeParameterIndex(typeParameter: PsiTypeParameter?): Int = _typeParameters.indexOf(typeParameter)
+    override fun getTypeParameterIndex(typeParameter: PsiTypeParameter): Int = _typeParameters.indexOf(typeParameter)
 
     override fun toString(): String = "SymbolLightTypeParameterList"
 
diff --git a/compiler/cli/cli-base/src/org/jetbrains/kotlin/cli/jvm/compiler/MockExternalAnnotationsManager.kt b/compiler/cli/cli-base/src/org/jetbrains/kotlin/cli/jvm/compiler/MockExternalAnnotationsManager.kt
index 55611dc..e2cbf53 100644
--- a/compiler/cli/cli-base/src/org/jetbrains/kotlin/cli/jvm/compiler/MockExternalAnnotationsManager.kt
+++ b/compiler/cli/cli-base/src/org/jetbrains/kotlin/cli/jvm/compiler/MockExternalAnnotationsManager.kt
@@ -29,7 +29,7 @@
 
     override fun findExternalAnnotationsFiles(listOwner: PsiModifierListOwner): List<PsiFile>? = null
     override fun findExternalAnnotation(listOwner: PsiModifierListOwner, annotationFQN: String): PsiAnnotation? = null
-    override fun findExternalAnnotations(listOwner: PsiModifierListOwner): Array<out PsiAnnotation>? = null
+    override fun findExternalAnnotations(listOwner: PsiModifierListOwner): Array<out PsiAnnotation> = emptyArray()
 
     override fun annotateExternally(
         listOwner: PsiModifierListOwner,
diff --git a/jps/jps-plugin/src/org/jetbrains/kotlin/jps/targets/KotlinJvmModuleBuildTarget.kt b/jps/jps-plugin/src/org/jetbrains/kotlin/jps/targets/KotlinJvmModuleBuildTarget.kt
index ae3c971..73ab13d 100644
--- a/jps/jps-plugin/src/org/jetbrains/kotlin/jps/targets/KotlinJvmModuleBuildTarget.kt
+++ b/jps/jps-plugin/src/org/jetbrains/kotlin/jps/targets/KotlinJvmModuleBuildTarget.kt
@@ -332,8 +332,8 @@
         val roots = context.projectDescriptor.buildRootIndex.getTargetRoots(jpsModuleBuildTarget, context)
         val result = mutableListOf<JvmSourceRoot>()
         for (root in roots) {
-            val file = root.rootFile
-            val filePath = file.toPath()
+            val filePath = root.rootFile
+            val file = filePath.toFile()
             val prefix = root.packagePrefix
             if (Files.exists(filePath) && (Files.isDirectory(filePath) || file.extension == "java")) {
                 result.add(JvmSourceRoot(file, prefix.ifEmpty { null }))