KotlinExpressionMover: trailing comma support

#KT-34744

idea/testData/codeInsight/moveUpDown/trailingComma/funParams1.kt

@@ -0,0 +1,13 @@
+// MOVE: down
+class A {
+    fun <T, U, W> foo(
+            b:<caret> Int,
+            a: Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}