Kotlin: Add FP test case for misnamed reftype query

Author: tamasvajk

java/ql/test/kotlin/query-tests/NamingConventionsRefTypes/NamingConventionsRefTypes.expected

@@ -0,0 +1,3 @@
+| Test.kt:3:23:5:9 |  | Class and interface names should start in uppercase. |
+| Test.kt:7:9:8:9 |  | Class and interface names should start in uppercase. |
+| Test.kt:12:1:12:13 | aaaa | Class and interface names should start in uppercase. |

java/ql/test/kotlin/query-tests/NamingConventionsRefTypes/NamingConventionsRefTypes.qlref

@@ -0,0 +1 @@
+Advisory/Naming/NamingConventionsRefTypes.ql

java/ql/test/kotlin/query-tests/NamingConventionsRefTypes/Test.kt

@@ -0,0 +1,12 @@
+class Foo {
+    fun myFun() {
+        val nestedStr by lazy {
+            "another string"
+        }
+
+        fun nestedFun() {
+        }
+    }
+}
+
+class aaaa {}