unified: Add test where function and its parameter have the same name

Author: asgerf

unified/ql/test/library-tests/local-name-binding/test.swift

@@ -382,3 +382,26 @@ func t39(value: Int) {
         return
     }
 }
+
+func t40() {
+    // This function and its parameter have the same name
+    func foo(  // $ SPURIOUS: access=foo2 // name=foo1
+        _ foo: String  // $ SPURIOUS: access=foo2 captured=foo2 // name=foo2
+    ) {
+        foo  // $ access=foo2
+    }
+    foo()  // $ MISSING: access=foo1
+}
+
+func t41() {
+    // This function and its parameter have the same name
+    // The parameter default value must resolve to the outer name (the function)
+    // swift-format-ignore
+    func foo(  // $ SPURIOUS: access=foo2 // name=foo1
+        _ foo: Any = // $ SPURIOUS: access=foo2 captured=foo2 // name=foo2
+            foo  // $ MISSING: access=foo1 SPURIOUS: access=foo2
+    ) {
+        foo  // $ access=foo2
+    }
+    foo()  // $ MISSING: access=foo1
+}