Join declaration & assignment: do not suggest for non-first line of init / constructor #KT-15545 Fixed

idea/testData/intentions/joinDeclarationAndAssignment/notFirstInitLine.kt

@@ -0,0 +1,20 @@
+// IS_APPLICABLE: false
+
+class A
+
+class AFabric {
+    lateinit var instance: A
+    fun init(config: Unit) {
+        instance = A()
+    }
+}
+
+class V(fabric: AFabric) {
+    val a: A<caret>
+    init {
+        val config = getConfig()
+        fabric.init(config)
+        a = fabric.instance
+    }
+    fun getConfig() = Unit
+}