Add tests for Android flow steps

java/ql/test/stubs/google-android-9.0.0/android/util/SparseArray.java

@@ -0,0 +1,27 @@
+// Generated automatically from android.util.SparseArray for testing purposes
+
+package android.util;
+
+
+public class SparseArray<E> implements Cloneable
+{
+    public E get(int p0){ return null; }
+    public E get(int p0, E p1){ return null; }
+    public E valueAt(int p0){ return null; }
+    public SparseArray(){}
+    public SparseArray(int p0){}
+    public SparseArray<E> clone(){ return null; }
+    public String toString(){ return null; }
+    public int indexOfKey(int p0){ return 0; }
+    public int indexOfValue(E p0){ return 0; }
+    public int keyAt(int p0){ return 0; }
+    public int size(){ return 0; }
+    public void append(int p0, E p1){}
+    public void clear(){}
+    public void delete(int p0){}
+    public void put(int p0, E p1){}
+    public void remove(int p0){}
+    public void removeAt(int p0){}
+    public void removeAtRange(int p0, int p1){}
+    public void setValueAt(int p0, E p1){}
+}