Add two tests developed on the take-2 branch.

The define-chain-obj-to-func-parens-in-text test passes here while the
if-with-macros test fails.

tests/054-if-with-macros.c

@@ -0,0 +1,34 @@
+#define one 1
+#define two 2
+#define three 3
+#define five 5
+#if five < two
+failure_1
+#else
+success_1
+#endif
+#if three >= two
+success_2
+#else
+failure_2
+#endif
+#if two + three <= five
+success_3
+#else
+failure_3
+#endif
+#if five - two == three
+success_4
+#else
+failure_4
+#endif
+#if one > three
+failure_5
+#else
+success_5
+#endif
+#if one != five
+success_6
+#else
+failure_6
+#endif

tests/055-define-chain-obj-to-func-parens-in-text.c

@@ -0,0 +1,3 @@
+#define failure() success
+#define foo failure
+foo()