MoveVariableDeclarationIntoWhenInspection: report it if initializer is single line even if property is multi line

#KT-39467 Fixed

idea/src/org/jetbrains/kotlin/idea/inspections/MoveVariableDeclarationIntoWhenInspection.kt

@@ -32,19 +32,21 @@ class MoveVariableDeclarationIntoWhenInspection : AbstractKotlinInspection(), Cl
         whenExpressionVisitor(fun(expression: KtWhenExpression) {
             val subjectExpression = expression.subjectExpression ?: return
             val property = expression.findDeclarationNear() ?: return
-            if (!property.isOneLiner()) return
+            val identifier = property.nameIdentifier ?: return
-            if (property.initializer?.anyDescendantOfType<KtExpression> {
+            val initializer = property.initializer ?: return
+            if (!initializer.isOneLiner()) return
+            if (initializer.anyDescendantOfType<KtExpression> {
                     it is KtThrowExpression || it is KtReturnExpression || it is KtBreakExpression || it is KtContinueExpression
-                } == true) return
+                }) return
 
             val action = property.action(expression)
             if (action == Action.NOTHING) return
 
-            val identifier = property.nameIdentifier ?: return
             holder.registerProblem(
                 property,
                 TextRange.from(identifier.startOffsetInParent, identifier.textLength),
-                action.description, action.createFix(subjectExpression.createSmartPointer())
+                action.description,
+                action.createFix(subjectExpression.createSmartPointer())
             )
         })
 }

idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/multiLinePropertywithSingleLineInitializer.kt

@@ -0,0 +1,10 @@
+fun test() = 42
+
+fun foo() {
+    val <caret>a =
+        test()
+    when (a) {
+        1 -> 0
+        else -> 24
+    }
+}

idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/multiLinePropertywithSingleLineInitializer.kt.after

@@ -0,0 +1,8 @@
+fun test() = 42
+
+fun foo() {
+    when (test()) {
+        1 -> 0
+        else -> 24
+    }
+}

idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/multiLinePropertywithSingleLineInitializer2.kt

@@ -0,0 +1,10 @@
+fun test() = 42
+
+fun foo() {
+    val <caret>a =
+        test()
+    when (a) {
+        1 -> a
+        else -> 24
+    }
+}

idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/multiLinePropertywithSingleLineInitializer2.kt.after

@@ -0,0 +1,9 @@
+fun test() = 42
+
+fun foo() {
+    when (val a =
+        test()) {
+        1 -> a
+        else -> 24
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/inspections/LocalInspectionTestGenerated.java

@@ -6885,6 +6885,16 @@ public class LocalInspectionTestGenerated extends AbstractLocalInspectionTest {
             runTest("idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/inUnaryAndProperty.kt");
         }
 
+        @TestMetadata("multiLinePropertywithSingleLineInitializer.kt")
+        public void testMultiLinePropertywithSingleLineInitializer() throws Exception {
+            runTest("idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/multiLinePropertywithSingleLineInitializer.kt");
+        }
+
+        @TestMetadata("multiLinePropertywithSingleLineInitializer2.kt")
+        public void testMultiLinePropertywithSingleLineInitializer2() throws Exception {
+            runTest("idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/multiLinePropertywithSingleLineInitializer2.kt");
+        }
+
         @TestMetadata("notApplicableInBinaryExpression.kt")
         public void testNotApplicableInBinaryExpression() throws Exception {
             runTest("idea/testData/inspectionsLocal/moveVariableDeclarationIntoWhen/notApplicableInBinaryExpression.kt");