Don't move line and /**/ comments during reformat (KT-18805)

#KT-18805 Fixed

idea/testData/formatter/DanglingComments.after.kt

@@ -0,0 +1,13 @@
+fun x1() =             // cx1
+        42
+
+fun x2() =             /* cx2 */
+        42
+
+fun x3() {
+    1 +                // cx4_1
+            2
+
+    1 +                /* cx4_2 */
+            2
+}

idea/testData/formatter/DanglingComments.kt

@@ -0,0 +1,13 @@
+fun x1() =             // cx1
+        42
+
+fun x2() =             /* cx2 */
+        42
+
+fun x3() {
+    1 +                // cx4_1
+    2
+
+    1 +                /* cx4_2 */
+    2
+}