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/uuid.h b/libc/kernel/uapi/linux/uuid.h
index 5c29809..cc86fc3 100644
--- a/libc/kernel/uapi/linux/uuid.h
+++ b/libc/kernel/uapi/linux/uuid.h
@@ -22,15 +22,19 @@
 #include <linux/string.h>
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 typedef struct {
- __u8 b[16];
+  __u8 b[16];
 } uuid_le;
 typedef struct {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u8 b[16];
+  __u8 b[16];
 } uuid_be;
-#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)  ((uuid_le)  {{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff,   (b) & 0xff, ((b) >> 8) & 0xff,   (c) & 0xff, ((c) >> 8) & 0xff,   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
-#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)  ((uuid_be)  {{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff,   ((b) >> 8) & 0xff, (b) & 0xff,   ((c) >> 8) & 0xff, (c) & 0xff,   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+#define UUID_LE(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
+((uuid_le) \
+{ { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff, (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })
+#define UUID_BE(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
+((uuid_be) \
+{ { ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, ((b) >> 8) & 0xff, (b) & 0xff, ((c) >> 8) & 0xff, (c) & 0xff, (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) } })
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
-#define NULL_UUID_LE   UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,   0x00, 0x00, 0x00, 0x00)
-#define NULL_UUID_BE   UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,   0x00, 0x00, 0x00, 0x00)
+#define NULL_UUID_LE UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
+#define NULL_UUID_BE UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
 #endif