Formatter: support "while on new line" option

idea/testData/formatter/DoWhileSpacing.after.kt

@@ -6,12 +6,10 @@ fun test() {
     } while (true)
 
     do {
-    }
-    while (true)
+    } while (true)
 
     do {
-    }
-    while (true)
+    } while (true)
 
     do {
     } while (true)

idea/testData/formatter/WhileOnNewLine.after.inv.kt

@@ -0,0 +1,16 @@
+fun f() {
+    do {
+
+    } while (true)
+
+    do {
+
+    } while (true)
+
+    do a += 1 while (true)
+
+    do a += 1
+    while (true)
+}
+
+// SET_TRUE: WHILE_ON_NEW_LINE

idea/testData/formatter/WhileOnNewLine.after.kt

@@ -0,0 +1,18 @@
+fun f() {
+    do {
+
+    }
+    while (true)
+
+    do {
+
+    }
+    while (true)
+
+    do a += 1 while (true)
+
+    do a += 1
+    while (true)
+}
+
+// SET_TRUE: WHILE_ON_NEW_LINE

idea/testData/formatter/WhileOnNewLine.kt

@@ -0,0 +1,17 @@
+fun f() {
+    do {
+
+    } while (true)
+
+    do {
+
+    }
+    while (true)
+
+    do a += 1 while (true)
+
+    do a += 1
+    while (true)
+}
+
+// SET_TRUE: WHILE_ON_NEW_LINE