Primary constructor to secondary: always try to build constructor body #KT-14475 Fixed

idea/testData/intentions/convertPrimaryConstructorToSecondary/initWithoutAssignments.kt

@@ -0,0 +1,12 @@
+fun println(arg: Int) = arg
+
+class My<caret>() {
+    val x = 1
+
+    val y = 2
+
+    init {
+        println(x)
+        println(y)
+    }
+}

idea/testData/intentions/convertPrimaryConstructorToSecondary/initWithoutAssignments.kt.after

@@ -0,0 +1,13 @@
+fun println(arg: Int) = arg
+
+class My {
+    constructor() {
+        println(x)
+        println(y)
+    }
+
+    val x: Int = 1
+
+    val y: Int = 2
+
+}