KT-7151 Convert 'System.out.println()' to just 'println()'

#KT-7151 Fixed

j2k/testData/fileOrElement/switch/caseWithBlock.kt

@@ -2,16 +2,16 @@ fun foo() {
     when (a) {
         1 -> {
             val x = 1
-            System.out.println(x)
+            println(x)
         }
 
         2 -> {
             val x = 2
-            System.out.println(x)
+            println(x)
         }
 
         3 -> {
-            System.out.println(3)
+            println(3)
         }
     }
 }

j2k/testData/fileOrElement/switch/comlicatedFallDown.kt

@@ -2,7 +2,7 @@ package demo
 
 public object SwitchDemo {
     public fun print(o: Any) {
-        System.out.println(o)
+        println(o)
     }
 
     public fun test(i: Int) {
@@ -73,7 +73,7 @@ public object SwitchDemo {
             12 -> monthString = "December"
             else -> monthString = "Invalid month"
         }
-        System.out.println(monthString)
+        println(monthString)
     }
 
     public fun main(args: Array<String>) {

j2k/testData/fileOrElement/switch/continueAndBreakWithLabel.kt

@@ -3,11 +3,11 @@ fun foo() {
         when (take()) {
             1 -> continue
             2 -> {
-                System.out.println("2")
+                println("2")
                 return
             }
             3 -> break@Loop
         }
-        System.out.println()
+        println()
     }
 }

j2k/testData/fileOrElement/switch/emptySwitch.kt

@@ -6,7 +6,7 @@ public object NonDefault {
         when (value) {
 
         }
-        System.out.println(valueString)
+        println(valueString)
     }
 }
 

j2k/testData/fileOrElement/switch/fallDown.kt

@@ -8,7 +8,7 @@ public object SwitchDemo {
             1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 -> monthString = "December"
             else -> monthString = "Invalid month"
         }
-        System.out.println(monthString)
+        println(monthString)
     }
 }
 

j2k/testData/fileOrElement/switch/fallDownWithBlocks.kt

@@ -4,17 +4,17 @@ public object C {
             1 -> {
                 run {
                     val a = 1
-                    System.out.print("1")
+                    print("1")
                 }
                 run {
                     val a = 2
-                    System.out.print("2")
+                    print("2")
                 }
             }
 
             2 -> {
                 val a = 2
-                System.out.print("2")
+                print("2")
             }
         }
     }

j2k/testData/fileOrElement/switch/invalidSwitch.kt

@@ -1,8 +1,8 @@
 fun foo() {
     when (a) {
         -> {
-            System.out.println("1")
-            System.out.println("2")
+            println("1")
+            println("2")
         }
     }
 }

j2k/testData/fileOrElement/switch/kt-539.kt

@@ -20,7 +20,7 @@ public object SwitchDemo {
             12 -> monthString = "December"
             else -> monthString = "Invalid month"
         }
-        System.out.println(monthString)
+        println(monthString)
     }
 }
 

j2k/testData/fileOrElement/switch/nondefault.kt

@@ -8,7 +8,7 @@ public object NonDefault {
             2 -> valueString = "TWO"
             3 -> valueString = "THREE"
         }
-        System.out.println(valueString)
+        println(valueString)
     }
 }
 

j2k/testData/fileOrElement/switch/returnsAndThrows.kt

@@ -1,19 +1,19 @@
 fun foo(a: Int): Int {
     when (a) {
         1 -> {
-            System.out.println("1")
+            println("1")
             return 1
         }
         2 -> {
-            System.out.println("2")
+            println("2")
             return 2
         }
         3 -> {
-            System.out.println("3")
+            println("3")
             throw RuntimeException()
         }
         else -> {
-            System.out.println("default")
+            println("default")
             return 0
         }
     }