Switch kernel header parsing to python libclang

Replace the tokenizer in cpp.py with libclang.

Bug: 18937958
Change-Id: I27630904c6d2849418cd5ca3d3c612ec3078686d
diff --git a/libc/kernel/uapi/linux/atm_nicstar.h b/libc/kernel/uapi/linux/atm_nicstar.h
index c059751..affedda 100644
--- a/libc/kernel/uapi/linux/atm_nicstar.h
+++ b/libc/kernel/uapi/linux/atm_nicstar.h
@@ -21,28 +21,25 @@
 #include <linux/atmapi.h>
 #include <linux/atmioc.h>
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define NS_GETPSTAT _IOWR('a',ATMIOC_SARPRV+1,struct atmif_sioc)
-#define NS_SETBUFLEV _IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
-#define NS_ADJBUFLEV _IO('a',ATMIOC_SARPRV+3)
-typedef struct buf_nr
+#define NS_GETPSTAT _IOWR('a', ATMIOC_SARPRV + 1, struct atmif_sioc)
+#define NS_SETBUFLEV _IOW('a', ATMIOC_SARPRV + 2, struct atmif_sioc)
+#define NS_ADJBUFLEV _IO('a', ATMIOC_SARPRV + 3)
+typedef struct buf_nr {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-{
- unsigned min;
- unsigned init;
- unsigned max;
+  unsigned min;
+  unsigned init;
+  unsigned max;
+} buf_nr;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-}buf_nr;
-typedef struct pool_levels
-{
- int buftype;
+typedef struct pool_levels {
+  int buftype;
+  int count;
+  buf_nr level;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- int count;
- buf_nr level;
 } pool_levels;
 #define NS_BUFTYPE_SMALL 1
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NS_BUFTYPE_LARGE 2
 #define NS_BUFTYPE_HUGE 3
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define NS_BUFTYPE_IOVEC 4
 #endif
-/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */