Kotlin: Add a test for nested types

Author: igfoo

java/ql/test-kotlin2/library-tests/nested_types/test.kt

@@ -0,0 +1,14 @@
+
+import java.util.Stack;
+
+class MyType
+
+fun foo1(x: List<List<List<List<MyType>>>>) { }
+
+fun foo2(x: Stack<Stack<Stack<Stack<MyType>>>>) { }
+
+class MkT<T> { }
+
+fun foo3(x: MkT<MkT<MkT<MkT<MyType>>>>) { }
+
+

java/ql/test-kotlin2/library-tests/nested_types/types.expected

@@ -0,0 +1,15 @@
+| file:///!unknown-binary-location/MkT.class:0:0:0:0 | MkT<MkT<MkT<MkT<MyType>>>> |
+| file:///!unknown-binary-location/MkT.class:0:0:0:0 | MkT<MkT<MkT<MyType>>> |
+| file:///!unknown-binary-location/MkT.class:0:0:0:0 | MkT<MkT<MyType>> |
+| file:///!unknown-binary-location/MkT.class:0:0:0:0 | MkT<MyType> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<? extends List<? extends List<? extends List<MyType>>>> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<? extends List<? extends List<MyType>>> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<? extends List<MyType>> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<MyType> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<Stack<MyType>> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<Stack<Stack<MyType>>> |
+| file:///modules/java.base/java/util/List.class:0:0:0:0 | List<Stack<Stack<Stack<MyType>>>> |
+| file:///modules/java.base/java/util/Stack.class:0:0:0:0 | Stack<MyType> |
+| file:///modules/java.base/java/util/Stack.class:0:0:0:0 | Stack<Stack<MyType>> |
+| file:///modules/java.base/java/util/Stack.class:0:0:0:0 | Stack<Stack<Stack<MyType>>> |
+| file:///modules/java.base/java/util/Stack.class:0:0:0:0 | Stack<Stack<Stack<Stack<MyType>>>> |

java/ql/test-kotlin2/library-tests/nested_types/types.ql

@@ -0,0 +1,6 @@
+import java
+
+from Type t
+where t.getName().matches("%MyType%")
+  and t.getName().matches(["List<%", "Stack<%", "MkT<%"])
+select t