Minor: fix Nullness deprecation warnings

.idea/inspectionProfiles/idea_default.xml

@@ -119,6 +119,7 @@
           <Problem reference="com.intellij.testFramework.PlatformTestCase#createModuleAt" reason="Not static anymore in 181 after 7dacf096c47d2125e17031c71a037b63ab00ec53" />
           <Problem reference="com.intellij.testFramework.PlatformTestCase#doCreateRealModuleIn" reason="Not static anymore in 181 after 7dacf096c47d2125e17031c71a037b63ab00ec53" />
           <Problem reference="com.intellij.openapi.progress.ProgressManager#getProgressIndicator" reason="Nullable in 181. Temporary use progressIndicatorNullable instead." />
+          <Problem reference="com.intellij.codeInspection.dataFlow.Nullness" reason="Deprecated since 182. Use org.jetbrains.kotlin.idea.util.compat.Nullability instead." />
         </list>
       </option>
     </inspection_tool>

idea/src/org/jetbrains/kotlin/idea/j2k/IdeaJavaToKotlinServices.kt

@@ -16,13 +16,14 @@
 
 package org.jetbrains.kotlin.idea.j2k
 
-import com.intellij.codeInspection.dataFlow.DfaUtil
-import com.intellij.codeInspection.dataFlow.Nullness
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiMethod
 import com.intellij.psi.PsiVariable
+import org.jetbrains.kotlin.idea.util.compat.dfaCheckNullability
+import org.jetbrains.kotlin.idea.util.compat.dfaInferMethodNullability
 import org.jetbrains.kotlin.j2k.*
 import org.jetbrains.kotlin.j2k.ast.Nullability
+import org.jetbrains.kotlin.idea.util.compat.Nullability as IntellijNullability
 
 object IdeaJavaToKotlinServices : JavaToKotlinConverterServices {
     override val referenceSearcher: ReferenceSearcher
@@ -47,14 +48,14 @@ object IdeaSuperMethodSearcher : SuperMethodsSearcher {
 
 private object IdeaJavaDataFlowAnalyzerFacade : JavaDataFlowAnalyzerFacade {
     override fun variableNullability(variable: PsiVariable, context: PsiElement): Nullability =
-            DfaUtil.checkNullness(variable, context).toJ2KNullability()
+        dfaCheckNullability(variable, context).toJ2KNullability()
 
     override fun methodNullability(method: PsiMethod): Nullability =
-            DfaUtil.inferMethodNullity(method).toJ2KNullability()
+        dfaInferMethodNullability(method).toJ2KNullability()
 
-    private fun Nullness.toJ2KNullability() = when (this) {
-        Nullness.UNKNOWN -> Nullability.Default
-        Nullness.NOT_NULL -> Nullability.NotNull
-        Nullness.NULLABLE -> Nullability.Nullable
+    private fun IntellijNullability.toJ2KNullability() = when (this) {
+        IntellijNullability.UNKNOWN -> Nullability.Default
+        IntellijNullability.NOT_NULL -> Nullability.NotNull
+        IntellijNullability.NULLABLE -> Nullability.Nullable
     }
 }

idea/src/org/jetbrains/kotlin/idea/slicer/KotlinSliceProvider.kt

@@ -16,7 +16,6 @@
 
 package org.jetbrains.kotlin.idea.slicer
 
-import com.intellij.codeInspection.dataFlow.Nullness
 import com.intellij.ide.util.treeView.AbstractTreeStructure
 import com.intellij.openapi.actionSystem.DefaultActionGroup
 import com.intellij.psi.PsiElement
@@ -24,12 +23,12 @@ import com.intellij.slicer.*
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.descriptors.CallableDescriptor
 import org.jetbrains.kotlin.idea.caches.resolve.analyze
-import org.jetbrains.kotlin.idea.caches.resolve.analyzeAndGetResult
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptorIfAny
-import org.jetbrains.kotlin.idea.quickfix.createFromUsage.callableBuilder.guessTypes
 import org.jetbrains.kotlin.idea.references.KtReference
 import org.jetbrains.kotlin.idea.references.mainReference
 import org.jetbrains.kotlin.idea.slicer.compat.PsiElement_N183_NN191
+import org.jetbrains.kotlin.idea.util.compat.Nullability
+import org.jetbrains.kotlin.idea.util.compat.SliceNullnessAnalyzerBaseEx
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.isPlainWithEscapes
 import org.jetbrains.kotlin.psi.psiUtil.parentsWithSelf
@@ -51,8 +50,8 @@ class KotlinSliceProvider : SliceLanguageSupportProvider, SliceUsageTransformer
 
     val leafAnalyzer by lazy { SliceLeafAnalyzer(LEAF_ELEMENT_EQUALITY, this) }
     val nullnessAnalyzer: SliceNullnessAnalyzerBase by lazy {
-        object : SliceNullnessAnalyzerBase(LEAF_ELEMENT_EQUALITY, this) {
-            override fun checkNullness(element: PsiElement?): Nullness {
+        object : SliceNullnessAnalyzerBaseEx(LEAF_ELEMENT_EQUALITY, this) {
+            override fun checkNullabilityEx(element: PsiElement?): Nullability {
                 val types = when (element) {
                     is KtCallableDeclaration -> listOfNotNull((element.resolveToDescriptorIfAny() as? CallableDescriptor)?.returnType)
                     is KtDeclaration -> emptyList()
@@ -60,10 +59,10 @@ class KotlinSliceProvider : SliceLanguageSupportProvider, SliceUsageTransformer
                     else -> emptyList()
                 }
                 return when {
-                    types.isEmpty() -> return Nullness.UNKNOWN
-                    types.all { KotlinBuiltIns.isNullableNothing(it) } -> Nullness.NULLABLE
-                    types.any { it.isError || TypeUtils.isNullableType(it) || it.isNullabilityFlexible() } -> Nullness.UNKNOWN
-                    else -> Nullness.NOT_NULL
+                    types.isEmpty() -> return Nullability.UNKNOWN
+                    types.all { KotlinBuiltIns.isNullableNothing(it) } -> Nullability.NULLABLE
+                    types.any { it.isError || TypeUtils.isNullableType(it) || it.isNullabilityFlexible() } -> Nullability.UNKNOWN
+                    else -> Nullability.NOT_NULL
                 }
             }
         }

idea/src/org/jetbrains/kotlin/idea/util/compat/Nullability.kt

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+@file:Suppress("MissingRecentApi", "IncompatibleAPI")
+
+package org.jetbrains.kotlin.idea.util.compat
+
+import com.intellij.codeInsight.Nullability as IntellijNullability
+import com.intellij.codeInspection.dataFlow.DfaUtil
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiMethod
+import com.intellij.psi.PsiVariable
+import com.intellij.slicer.SliceLanguageSupportProvider
+import com.intellij.slicer.SliceLeafEquality
+import com.intellij.slicer.SliceNullnessAnalyzerBase
+
+// BUNCH: 181
+typealias Nullability = IntellijNullability
+
+// BUNCH: 181
+fun dfaCheckNullability(variable: PsiVariable?, context: PsiElement?): Nullability =
+    DfaUtil.checkNullability(variable, context)
+
+// BUNCH: 181
+fun dfaInferMethodNullability(method: PsiMethod): Nullability =
+    DfaUtil.inferMethodNullability(method)
+
+// BUNCH: 181
+abstract class SliceNullnessAnalyzerBaseEx(
+    leafEquality: SliceLeafEquality,
+    provider: SliceLanguageSupportProvider
+) : SliceNullnessAnalyzerBase(leafEquality, provider) {
+    override fun checkNullability(element: PsiElement?): Nullability {
+        return checkNullabilityEx(element)
+    }
+
+    abstract fun checkNullabilityEx(element: PsiElement?): Nullability
+}

idea/src/org/jetbrains/kotlin/idea/util/compat/Nullability.kt.181

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+@file:Suppress("MissingRecentApi", "IncompatibleAPI")
+
+package org.jetbrains.kotlin.idea.util.compat
+
+import com.intellij.codeInspection.dataFlow.Nullness
+import com.intellij.codeInspection.dataFlow.DfaUtil
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiMethod
+import com.intellij.psi.PsiVariable
+import com.intellij.slicer.SliceLanguageSupportProvider
+import com.intellij.slicer.SliceLeafEquality
+import com.intellij.slicer.SliceNullnessAnalyzerBase
+
+// BUNCH: 181
+typealias Nullability = Nullness
+
+// BUNCH: 181
+fun dfaCheckNullability(variable: PsiVariable?, context: PsiElement?): Nullability =
+    DfaUtil.checkNullness(variable, context)
+
+// BUNCH: 181
+fun dfaInferMethodNullability(method: PsiMethod): Nullability =
+    DfaUtil.inferMethodNullity(method)
+
+// BUNCH: 181
+abstract class SliceNullnessAnalyzerBaseEx(
+    leafEquality: SliceLeafEquality,
+    provider: SliceLanguageSupportProvider
+) : SliceNullnessAnalyzerBase(leafEquality, provider) {
+    override fun checkNullness(element: PsiElement?): Nullability {
+        return checkNullabilityEx(element)
+    }
+
+    abstract fun checkNullabilityEx(element: PsiElement?): Nullability
+}