Add more tests.

Author: reitermarkus

bindgen-tests/tests/expectations/tests/macro-cast.rs

@@ -0,0 +1,7 @@
+#define ULONG_MAX 4294967295
+
+typedef unsigned long TickType_t;
+#define portMAX_DELAY (TickType_t) ULONG_MAX
+
+#define NEG_TO_POS (unsigned int) -1
+#define BIG_TO_SMALL (unsigned short) ULONG_MAX

bindgen-tests/tests/expectations/tests/macro-do-while.rs

@@ -0,0 +1,6 @@
+int xTaskDelayUntil(int, int);
+
+#define vTaskDelayUntil( pxPreviousWakeTime, xTimeIncrement )                   \
+    do {                                                                        \
+        ( void ) xTaskDelayUntil( ( pxPreviousWakeTime ), ( xTimeIncrement ) ); \
+    } while( 0 )

bindgen-tests/tests/expectations/tests/macro-func-arg-variable-same-name.rs

@@ -0,0 +1,6 @@
+// The `x` argument of the `f3` function-like macro
+// and the `x` in the nested `y` macro should be treated
+// as different variables.
+#define y x
+#define f3(x) y + y
+#define x 2