J2K: do not drop formatting for expressions with operator

j2k/testData/fileOrElement/enum/runnableImplementation.kt

@@ -2,6 +2,7 @@ internal enum class Color : Runnable {
     WHITE, BLACK, RED, YELLOW, BLUE;
 
     override fun run() {
-        println("name()=" + name + ", toString()=" + toString())
+        println("name()=" + name +
+                ", toString()=" + toString())
     }
 }

j2k/testData/fileOrElement/kotlinApiAccess/CorrectNullabilityDetected.java

@@ -1,6 +1,7 @@
 //file
 import kotlinApi.*;
 
+//TODO: Formatter works incorrectly
 class A {
     int foo(KotlinClass c) {
         return c.getNullableProperty().length()

j2k/testData/fileOrElement/kotlinApiAccess/CorrectNullabilityDetected.kt

@@ -1,7 +1,15 @@
 import kotlinApi.*
 
+//TODO: Formatter works incorrectly
 internal class A {
     fun foo(c: KotlinClass): Int {
-        return c.nullableProperty!!.length + c.property.length + KotlinClass.nullableStaticVar!! + KotlinClass.staticVar + KotlinClass.nullableStaticFun(1)!! + KotlinClass.staticFun(1) + nullableGlobalFunction("")!!.length + globalFunction("").length
+        return c.nullableProperty!!.length
+        +c.property.length
+        +KotlinClass.nullableStaticVar!!
+        +KotlinClass.staticVar
+        +KotlinClass.nullableStaticFun(1)!!
+        +KotlinClass.staticFun(1)
+        +nullableGlobalFunction("")!!.length
+        +globalFunction("").length
     }
 }

j2k/testData/fileOrElement/kotlinApiAccess/ObjectMembers.kt

@@ -4,6 +4,8 @@ internal class C {
     fun foo(): Int {
         KotlinObject.property1 = 1
         KotlinObject.property2 = 2
-        return KotlinObject.foo() + KotlinObject.property1 + KotlinObject.property2
+        return KotlinObject.foo() +
+                KotlinObject.property1 +
+                KotlinObject.property2
     }
 }

j2k/testData/fileOrElement/strings/formattedString.java

@@ -0,0 +1,10 @@
+public class A {
+    public static final String TEXT1 = "text1.\n" +
+                                       "text2\n" +
+                                       "text3";
+
+
+    public static final String TEXT2 = "text1\n"
+                                       + "text2\n"
+                                       + "text3";
+}

j2k/testData/fileOrElement/strings/formattedString.kt

@@ -0,0 +1,10 @@
+object A {
+    val TEXT1 = "text1.\n" +
+            "text2\n" +
+            "text3"
+
+
+    val TEXT2 = "text1\n"
+    + "text2\n"
+    + "text3"
+}