Can be constructor property: comment saver introduced to retain comments; unbound comments now added before, not after

(cherry picked from commit 886cf21)

idea/testData/intentions/simplifyAssertNotNull/commentsNoMessage.kt.after

@@ -2,7 +2,8 @@
 // WITH_RUNTIME
 
 fun foo(p: Array<String?>) {
-    val v = p[0]!!<caret>/* null */
+    /* null */
+    val v = p[0]!!
     // now let's check it for null
     // 'v' should not be null
 }

idea/testData/quickfix/abstract/abstractFunctionWithBodyWithComments2.kt.after

@@ -1,4 +1,5 @@
 // "Remove function body" "true"
 abstract class A() {
-    <caret>abstract fun foo()   // 3/*1*/
+    /*1*/
+    abstract fun foo()   // 3
 }

idea/testData/quickfix/canBePrimaryConstructorProperty/commentAfter.kt

@@ -0,0 +1,4 @@
+// "Move to constructor" "true"
+class Complex(x: Int, y: Double, z: String) {
+    val <caret>y: Double = y // Duplicating
+}

idea/testData/quickfix/canBePrimaryConstructorProperty/commentAfter.kt.after

@@ -0,0 +1,4 @@
+// "Move to constructor" "true"
+class Complex(x: Int, // Duplicating
+              val y: Double, z: String) {
+}

idea/testData/quickfix/canBePrimaryConstructorProperty/commentAhead.kt

@@ -0,0 +1,7 @@
+// "Move to constructor" "true"
+class Complex(x: Int, y: Double, z: String) {
+    /**
+     * Very complex field x
+     */
+    val <caret>x = x
+}

idea/testData/quickfix/canBePrimaryConstructorProperty/commentAhead.kt.after

@@ -0,0 +1,7 @@
+// "Move to constructor" "true"
+class Complex(
+        /**
+         * Very complex field x
+         */
+        val x: Int, y: Double, z: String) {
+}

idea/testData/quickfix/deprecatedSymbolUsage/keepComments/dropArgument.kt.after

@@ -8,5 +8,5 @@ fun oldFun(p: Int) {
 fun newFun(){}
 
 fun foo() {
-    newFun()/* use zero */
+    /* use zero */newFun()
 }