[C] Allow declaring a struct pointer in a struct

Fixes #1830

Signed-off-by: Raul E Rangel <rrangel@chromium.org>

Author: Raul E Rangel

C++/C.sublime-syntax

@@ -451,7 +451,7 @@ contexts:
 
   data-structures:
     # Detect variable type definitions using struct/enum/union followed by a tag
-    - match: '\b({{before_tag}})(?=\s+{{identifier}}\s+{{identifier}}\s*[=;\[])'
+    - match: '\b({{before_tag}})(?=\s+{{identifier}}\s+\**\s*{{identifier}}\s*[=;\[])'
       scope: storage.type.c
     - match: '\bstruct\b'
       scope: storage.type.c

C++/syntax_test_c.c

@@ -313,6 +313,10 @@ struct foo MACRO {
 /*         ^ - entity.name */
 }
 
+struct UI_BoundingBox *position_p;
+/*     ^ - entity.name */
+/*                     ^ - entity.name */
+
 // Partially-typed
 struct foo
 /*     ^ entity.name */
@@ -324,6 +328,12 @@ struct UI_MenuBoxData
     struct UI_BoundingBox position;
 /*         ^ - entity.name */
 /*                        ^ - entity.name */
+    struct UI_BoundingBox *position_p;
+/*         ^ - entity.name */
+/*                         ^ - entity.name */
+    struct UI_BoundingBox * position_p2;
+/*         ^ - entity.name */
+/*                          ^ - entity.name */
     enum UI_BoxCharType borderType;
 /*       ^ - entity.name */
 /*                      ^ - entity.name */