Merge pull request #11302 from tamasvajk/kotlin-ignored-return

Kotlin: Exclude .kt files from ignored return value query

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

@@ -0,0 +1 @@
+Likely Bugs/Statements/ReturnValueIgnored.ql

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

@@ -0,0 +1,16 @@
+class Foo {
+    fun foo(): Int { return 5 }
+    fun bar() {
+        val x0 = foo()
+        val x1 = foo()
+        val x2 = foo()
+        val x3 = foo()
+        val x4 = foo()
+        val x5 = foo()
+        val x6 = foo()
+        val x7 = foo()
+        val x8 = foo()
+        val x9 = foo()
+        val x = if (true) { foo() } else 6
+    }
+}