[set] Don't use major()

Fixes https://github.com/behdad/harfbuzz/issues/577

src/hb-set-private.hh

@@ -361,7 +361,7 @@ struct hb_set_t
       return *codepoint != INVALID;
     }
 
-    page_map_t map = {major (*codepoint), 0};
+    page_map_t map = {get_major (*codepoint), 0};
     unsigned int i;
     page_map.bfind (&map, &i);
     if (i < page_map.len)
@@ -432,7 +432,7 @@ struct hb_set_t
 
   page_t *page_for_insert (hb_codepoint_t g)
   {
-    page_map_t map = {major (g), pages.len};
+    page_map_t map = {get_major (g), pages.len};
     unsigned int i;
     if (!page_map.bfind (&map, &i))
     {
@@ -447,7 +447,7 @@ struct hb_set_t
   }
   page_t *page_for (hb_codepoint_t g)
   {
-    page_map_t key = {major (g)};
+    page_map_t key = {get_major (g)};
     const page_map_t *found = page_map.bsearch (&key);
     if (found)
       return &pages[found->index];
@@ -455,7 +455,7 @@ struct hb_set_t
   }
   const page_t *page_for (hb_codepoint_t g) const
   {
-    page_map_t key = {major (g)};
+    page_map_t key = {get_major (g)};
     const page_map_t *found = page_map.bsearch (&key);
     if (found)
       return &pages[found->index];
@@ -463,7 +463,7 @@ struct hb_set_t
   }
   page_t &page_at (unsigned int i) { return pages[page_map[i].index]; }
   const page_t &page_at (unsigned int i) const { return pages[page_map[i].index]; }
-  unsigned int major (hb_codepoint_t g) const { return g / page_t::PAGE_BITS; }
+  unsigned int get_major (hb_codepoint_t g) const { return g / page_t::PAGE_BITS; }
 };