J2K: Get nullability from variable initializer when converting call

#KT-11534 In Progress

j2k/testData/fileOrElement/nullability/nullableInitializer3.kt

@@ -0,0 +1,18 @@
+class Test {
+    fun notNullString(p: Int): String {
+        return "response"
+    }
+
+    private val notNullInitializerField = notNullString(3)
+    var notNullInitializerPublicField = notNullString(3)
+
+    fun testProperty() {
+        notNullInitializerField[0]
+        notNullInitializerPublicField[0]
+    }
+
+    fun testLocalVariable() {
+        val notNullInitializerVal = notNullString(3)
+        notNullInitializerVal[0]
+    }
+}