[docs] Make gtk-doc find these typedef’s

src/hb-aat-layout.h

@@ -732,8 +732,7 @@ HB_EXTERN hb_ot_name_id_t
 hb_aat_layout_feature_type_get_name_id (hb_face_t                    *face,
 					hb_aat_layout_feature_type_t  feature_type);
 
-typedef struct hb_aat_layout_feature_selector_info_t
-{
+typedef struct hb_aat_layout_feature_selector_info_t {
   hb_ot_name_id_t			name_id;
   hb_aat_layout_feature_selector_t	enable;
   hb_aat_layout_feature_selector_t	disable;

src/hb-buffer.h

@@ -59,8 +59,7 @@ HB_BEGIN_DECLS
  * The #hb_glyph_info_t is the structure that holds information about the
  * glyphs and their relation to input text.
  */
-typedef struct hb_glyph_info_t
-{
+typedef struct hb_glyph_info_t {
   hb_codepoint_t codepoint;
   /*< private >*/
   hb_mask_t      mask;

src/hb-font.h

@@ -82,8 +82,7 @@ hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs);
 /* font and glyph extents */
 
 /* Note that typically ascender is positive and descender negative in coordinate systems that grow up. */
-typedef struct hb_font_extents_t
-{
+typedef struct hb_font_extents_t {
   hb_position_t ascender; /* typographic ascender. */
   hb_position_t descender; /* typographic descender. */
   hb_position_t line_gap; /* suggested line spacing gap. */
@@ -100,8 +99,7 @@ typedef struct hb_font_extents_t
 } hb_font_extents_t;
 
 /* Note that height is negative in coordinate systems that grow up. */
-typedef struct hb_glyph_extents_t
-{
+typedef struct hb_glyph_extents_t {
   hb_position_t x_bearing; /* left side of glyph from origin. */
   hb_position_t y_bearing; /* top side of glyph from origin. */
   hb_position_t width; /* distance from left to right side. */

src/hb-ot-color.h

@@ -100,8 +100,7 @@ hb_ot_color_has_layers (hb_face_t *face);
  *
  * Since: 2.1.0
  **/
-typedef struct hb_ot_color_layer_t
-{
+typedef struct hb_ot_color_layer_t {
   hb_codepoint_t glyph;
   unsigned int   color_index;
 } hb_ot_color_layer_t;

src/hb-ot-deprecated.h

@@ -82,8 +82,7 @@ hb_ot_tag_from_language (hb_language_t language);
  * Since: 1.4.2
  * Deprecated: 2.2.0
  */
-typedef struct hb_ot_var_axis_t
-{
+typedef struct hb_ot_var_axis_t {
   hb_tag_t tag;
   hb_ot_name_id_t name_id;
   float min_value;

src/hb-ot-name.h

@@ -88,8 +88,7 @@ typedef unsigned int hb_ot_name_id_t;
  *
  * Since: 2.1.0
  **/
-typedef struct hb_ot_name_entry_t
-{
+typedef struct hb_ot_name_entry_t {
   hb_ot_name_id_t name_id;
   /*< private >*/
   hb_var_int_t    var;

src/hb-ot-var.h

@@ -115,8 +115,7 @@ typedef enum { /*< flags >*/
  *
  * Since: 2.2.0
  */
-typedef struct hb_ot_var_axis_info_t
-{
+typedef struct hb_ot_var_axis_info_t {
   unsigned int			axis_index;
   hb_tag_t			tag;
   hb_ot_name_id_t		name_id;