Move statement: enable expression ended with semicolon (KT-8581)

#KT-8581 Fixed

idea/src/org/jetbrains/kotlin/idea/codeInsight/upDownMover/KotlinExpressionMover.java

@@ -411,7 +411,7 @@ public class KotlinExpressionMover extends AbstractKotlinUpDownMover {
 
     @Override
     protected boolean checkSourceElement(@NotNull PsiElement element) {
-        return PsiTreeUtil.instanceOf(element, MOVABLE_ELEMENT_CLASSES);
+        return PsiTreeUtil.instanceOf(element, MOVABLE_ELEMENT_CLASSES) || element.getNode().getElementType() == KtTokens.SEMICOLON;
     }
 
     @Override
@@ -427,6 +427,10 @@ public class KotlinExpressionMover extends AbstractKotlinUpDownMover {
 
     @Nullable
     private static PsiElement getMovableElement(@NotNull PsiElement element, boolean lookRight) {
+        if (element.getNode().getElementType() == KtTokens.SEMICOLON) {
+            return element;
+        }
+
         //noinspection unchecked
         PsiElement movableElement = PsiUtilsKt.getParentOfTypesAndPredicate(
                 element,

idea/testData/codeInsight/moveUpDown/expressions/semicolon1.kt

@@ -0,0 +1,5 @@
+// MOVE: up
+fun x() {
+    println("a")
+    <caret>println("b");
+}

idea/testData/codeInsight/moveUpDown/expressions/semicolon1.kt.after

@@ -0,0 +1,5 @@
+// MOVE: up
+fun x() {
+    <caret>println("b");
+    println("a")
+}

idea/testData/codeInsight/moveUpDown/expressions/semicolon2.kt

@@ -0,0 +1,5 @@
+// MOVE: down
+fun x() {
+    <caret>println("b");
+    println("a")
+}

idea/testData/codeInsight/moveUpDown/expressions/semicolon2.kt.after

@@ -0,0 +1,5 @@
+// MOVE: down
+fun x() {
+    println("a")
+    <caret>println("b");
+}

idea/tests/org/jetbrains/kotlin/idea/codeInsight/moveUpDown/MoveStatementTestGenerated.java

@@ -1109,6 +1109,16 @@ public class MoveStatementTestGenerated extends AbstractMoveStatementTest {
             runTest("idea/testData/codeInsight/moveUpDown/expressions/qualifiedCall2.kt");
         }
 
+        @TestMetadata("semicolon1.kt")
+        public void testSemicolon1() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/expressions/semicolon1.kt");
+        }
+
+        @TestMetadata("semicolon2.kt")
+        public void testSemicolon2() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/expressions/semicolon2.kt");
+        }
+
         @TestMetadata("when1.kt")
         public void testWhen1() throws Exception {
             runTest("idea/testData/codeInsight/moveUpDown/expressions/when1.kt");