Move Left/Right: Support type constraints

#KT-26525 Fixed

idea/src/org/jetbrains/kotlin/idea/codeInsight/KotlinMoveLeftRightHandler.kt

@@ -28,6 +28,7 @@ class KotlinMoveLeftRightHandler : MoveElementLeftRightHandler() {
             is KtArrayAccessExpression -> return element.indexExpressions.toTypedArray()
             is KtTypeParameterList -> return element.parameters.toTypedArray()
             is KtSuperTypeList -> return element.entries.toTypedArray()
+            is KtTypeConstraintList -> return element.constraints.toTypedArray()
             //TODO
 //            is KtClass -> if (element.isEnum()) return element.declarations.filterIsInstance<KtEnumEntry>().toTypedArray()
         }

idea/testData/codeInsight/moveLeftRight/typeConstraints1.kt

@@ -0,0 +1,4 @@
+// MOVE: right
+interface Foo<E>
+interface Bar<K, V>
+interface Baz<E, K, N> where B : <caret>Bar<E, K>, E: Any, F: Foo<E>

idea/testData/codeInsight/moveLeftRight/typeConstraints1.kt.after

@@ -0,0 +1,4 @@
+// MOVE: right
+interface Foo<E>
+interface Bar<K, V>
+interface Baz<E, K, N> where E: Any, B : <caret>Bar<E, K>, F: Foo<E>

idea/testData/codeInsight/moveLeftRight/typeConstraints2.kt

@@ -0,0 +1,4 @@
+// MOVE: left
+interface Foo<E>
+interface Bar<K, V>
+interface Baz<E, K, N> where B : Bar<E, K>, <caret>E: Any, F: Foo<E>

idea/testData/codeInsight/moveLeftRight/typeConstraints2.kt.after

@@ -0,0 +1,4 @@
+// MOVE: left
+interface Foo<E>
+interface Bar<K, V>
+interface Baz<E, K, N> where <caret>E: Any, B : Bar<E, K>, F: Foo<E>

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

@@ -98,4 +98,14 @@ public class MoveLeftRightTestGenerated extends AbstractMoveLeftRightTest {
     public void testTypeArgs() throws Exception {
         runTest("idea/testData/codeInsight/moveLeftRight/typeArgs.kt");
     }
+
+    @TestMetadata("typeConstraints1.kt")
+    public void testTypeConstraints1() throws Exception {
+        runTest("idea/testData/codeInsight/moveLeftRight/typeConstraints1.kt");
+    }
+
+    @TestMetadata("typeConstraints2.kt")
+    public void testTypeConstraints2() throws Exception {
+        runTest("idea/testData/codeInsight/moveLeftRight/typeConstraints2.kt");
+    }
 }