unified: Add test exercising folder-based heuristic

Author: asgerf

unified/ql/test/library-tests/static-name-binding/not-a-package/Main/Drivers/Driver.swift

@@ -0,0 +1,4 @@
+class Driver { // name=Main.Driver
+}
+
+class UniqueToMain {}

unified/ql/test/library-tests/static-name-binding/not-a-package/Main/Runner.swift

@@ -0,0 +1,5 @@
+func main() {
+    Driver(); // $ access=Main.Driver
+    UniqueToMain(); // $ access=UniqueToMain
+    UniqueToMock(); // $ access=UniqueToMock
+}

unified/ql/test/library-tests/static-name-binding/not-a-package/Main/Util/Util.swift

@@ -0,0 +1,3 @@
+func getDriver() -> Driver { // $ access=Main.Driver
+    return Driver() // $ access=Main.Driver
+}

unified/ql/test/library-tests/static-name-binding/not-a-package/Mock/Drivers/Driver.swift

@@ -0,0 +1,4 @@
+class Driver { // name=Mock.Driver
+}
+
+class UniqueToMock {}

unified/ql/test/library-tests/static-name-binding/not-a-package/Mock/Runner.swift

@@ -0,0 +1,5 @@
+func main() {
+    Driver(); // $ access=Mock.Driver
+    UniqueToMain(); // $ access=UniqueToMain
+    UniqueToMock(); // $ access=UniqueToMock
+}

unified/ql/test/library-tests/static-name-binding/not-a-package/Mock/Util/Util.swift

@@ -0,0 +1,3 @@
+func getDriver() -> Driver { // $ access=Mock.Driver
+    return Driver() // $ access=Mock.Driver
+}