Tests for recursive suffix calls

test/libsolidity/semanticTests/literalSuffixes/recursive_suffix_application.sol

@@ -0,0 +1,16 @@
+function double(uint x) pure suffix returns (uint) {
+    if (x == 0)
+        return 0;
+    if (x == 1)
+        return 0 double + 2;
+    else
+        return 1 double * x;
+}
+
+contract C {
+    function test() public pure returns (uint) {
+        return 10 double;
+    }
+}
+// ----
+// test() -> 20