Formatter: Don't enforce empty line between secondary constructors without body (KT-12175)

#KT-12175 Fixed

idea/testData/formatter/SecondaryConstructors.kt

@@ -26,6 +26,14 @@ constructor() {}
     constructor()   : this() {}
 constructor():this() {}
 
+
+    constructor(a: Int) : this()
+    constructor(a: Byte) : this()
     constructor(): this   ()
     constructor(): super(){}
+
+
+    constructor(): this   ()
+
+    constructor(): super(){}
 }