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/drm/tegra_drm.h b/libc/kernel/uapi/drm/tegra_drm.h
index 2ec83e8..e207c0c 100644
--- a/libc/kernel/uapi/drm/tegra_drm.h
+++ b/libc/kernel/uapi/drm/tegra_drm.h
@@ -23,141 +23,141 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DRM_TEGRA_GEM_CREATE_BOTTOM_UP (1 << 1)
 struct drm_tegra_gem_create {
- __u64 size;
- __u32 flags;
+  __u64 size;
+  __u32 flags;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 handle;
+  __u32 handle;
 };
 struct drm_tegra_gem_mmap {
- __u32 handle;
+  __u32 handle;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 offset;
+  __u32 offset;
 };
 struct drm_tegra_syncpt_read {
- __u32 id;
+  __u32 id;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 value;
+  __u32 value;
 };
 struct drm_tegra_syncpt_incr {
- __u32 id;
+  __u32 id;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 pad;
+  __u32 pad;
 };
 struct drm_tegra_syncpt_wait {
- __u32 id;
+  __u32 id;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 thresh;
- __u32 timeout;
- __u32 value;
+  __u32 thresh;
+  __u32 timeout;
+  __u32 value;
 };
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DRM_TEGRA_NO_TIMEOUT (0xffffffff)
 struct drm_tegra_open_channel {
- __u32 client;
- __u32 pad;
+  __u32 client;
+  __u32 pad;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u64 context;
+  __u64 context;
 };
 struct drm_tegra_close_channel {
- __u64 context;
+  __u64 context;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct drm_tegra_get_syncpt {
- __u64 context;
- __u32 index;
+  __u64 context;
+  __u32 index;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 id;
+  __u32 id;
 };
 struct drm_tegra_get_syncpt_base {
- __u64 context;
+  __u64 context;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 syncpt;
- __u32 id;
+  __u32 syncpt;
+  __u32 id;
 };
 struct drm_tegra_syncpt {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 id;
- __u32 incrs;
+  __u32 id;
+  __u32 incrs;
 };
 struct drm_tegra_cmdbuf {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 handle;
- __u32 offset;
- __u32 words;
- __u32 pad;
+  __u32 handle;
+  __u32 offset;
+  __u32 words;
+  __u32 pad;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct drm_tegra_reloc {
- struct {
- __u32 handle;
+  struct {
+    __u32 handle;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 offset;
- } cmdbuf;
- struct {
- __u32 handle;
+    __u32 offset;
+  } cmdbuf;
+  struct {
+    __u32 handle;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 offset;
- } target;
- __u32 shift;
- __u32 pad;
+    __u32 offset;
+  } target;
+  __u32 shift;
+  __u32 pad;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 struct drm_tegra_waitchk {
- __u32 handle;
- __u32 offset;
+  __u32 handle;
+  __u32 offset;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 syncpt;
- __u32 thresh;
+  __u32 syncpt;
+  __u32 thresh;
 };
 struct drm_tegra_submit {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u64 context;
- __u32 num_syncpts;
- __u32 num_cmdbufs;
- __u32 num_relocs;
+  __u64 context;
+  __u32 num_syncpts;
+  __u32 num_cmdbufs;
+  __u32 num_relocs;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 num_waitchks;
- __u32 waitchk_mask;
- __u32 timeout;
- __u64 syncpts;
+  __u32 num_waitchks;
+  __u32 waitchk_mask;
+  __u32 timeout;
+  __u64 syncpts;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u64 cmdbufs;
- __u64 relocs;
- __u64 waitchks;
- __u32 fence;
+  __u64 cmdbufs;
+  __u64 relocs;
+  __u64 waitchks;
+  __u32 fence;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 reserved[5];
+  __u32 reserved[5];
 };
 #define DRM_TEGRA_GEM_TILING_MODE_PITCH 0
 #define DRM_TEGRA_GEM_TILING_MODE_TILED 1
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define DRM_TEGRA_GEM_TILING_MODE_BLOCK 2
 struct drm_tegra_gem_set_tiling {
- __u32 handle;
- __u32 mode;
+  __u32 handle;
+  __u32 mode;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 value;
- __u32 pad;
+  __u32 value;
+  __u32 pad;
 };
 struct drm_tegra_gem_get_tiling {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 handle;
- __u32 mode;
- __u32 value;
- __u32 pad;
+  __u32 handle;
+  __u32 mode;
+  __u32 value;
+  __u32 pad;
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 };
 #define DRM_TEGRA_GEM_BOTTOM_UP (1 << 0)
 #define DRM_TEGRA_GEM_FLAGS (DRM_TEGRA_GEM_BOTTOM_UP)
 struct drm_tegra_gem_set_flags {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 handle;
- __u32 flags;
+  __u32 handle;
+  __u32 flags;
 };
 struct drm_tegra_gem_get_flags {
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
- __u32 handle;
- __u32 flags;
+  __u32 handle;
+  __u32 flags;
 };
 #define DRM_TEGRA_GEM_CREATE 0x00
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */