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/asm-generic/stat.h b/libc/kernel/uapi/asm-generic/stat.h
index a94c69d..4dbc208 100644
--- a/libc/kernel/uapi/asm-generic/stat.h
+++ b/libc/kernel/uapi/asm-generic/stat.h
@@ -22,59 +22,59 @@
 #define STAT_HAVE_NSEC 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 struct stat {
- unsigned long st_dev;
- unsigned long st_ino;
- unsigned int st_mode;
+  unsigned long st_dev;
+  unsigned long st_ino;
+  unsigned int st_mode;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned int st_nlink;
- unsigned int st_uid;
- unsigned int st_gid;
- unsigned long st_rdev;
+  unsigned int st_nlink;
+  unsigned int st_uid;
+  unsigned int st_gid;
+  unsigned long st_rdev;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned long __pad1;
- long st_size;
- int st_blksize;
- int __pad2;
+  unsigned long __pad1;
+  long st_size;
+  int st_blksize;
+  int __pad2;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- long st_blocks;
- long st_atime;
- unsigned long st_atime_nsec;
- long st_mtime;
+  long st_blocks;
+  long st_atime;
+  unsigned long st_atime_nsec;
+  long st_mtime;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned long st_mtime_nsec;
- long st_ctime;
- unsigned long st_ctime_nsec;
- unsigned int __unused4;
+  unsigned long st_mtime_nsec;
+  long st_ctime;
+  unsigned long st_ctime_nsec;
+  unsigned int __unused4;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned int __unused5;
+  unsigned int __unused5;
 };
 #if __BITS_PER_LONG != 64 || defined(__ARCH_WANT_STAT64)
 struct stat64 {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned long long st_dev;
- unsigned long long st_ino;
- unsigned int st_mode;
- unsigned int st_nlink;
+  unsigned long long st_dev;
+  unsigned long long st_ino;
+  unsigned int st_mode;
+  unsigned int st_nlink;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- unsigned int st_uid;
- unsigned int st_gid;
- unsigned long long st_rdev;
- unsigned long long __pad1;
+  unsigned int st_uid;
+  unsigned int st_gid;
+  unsigned long long st_rdev;
+  unsigned long long __pad1;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- long long st_size;
- int st_blksize;
- int __pad2;
- long long st_blocks;
+  long long st_size;
+  int st_blksize;
+  int __pad2;
+  long long st_blocks;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- int st_atime;
- unsigned int st_atime_nsec;
- int st_mtime;
- unsigned int st_mtime_nsec;
+  int st_atime;
+  unsigned int st_atime_nsec;
+  int st_mtime;
+  unsigned int st_mtime_nsec;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- int st_ctime;
- unsigned int st_ctime_nsec;
- unsigned int __unused4;
- unsigned int __unused5;
+  int st_ctime;
+  unsigned int st_ctime_nsec;
+  unsigned int __unused4;
+  unsigned int __unused5;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #endif