Fix CQS signal modernize-use-using in fbcode/folly/memory

Differential Revision: D109815150

fbshipit-source-id: 6f7f7032a2d0b82f85f0238960ed508d746212ea

Author: generatedunixname2645487282517272

folly/memory/Arena.h

@@ -234,19 +234,17 @@ class Arena {
 
   // cache_last<true> makes the list keep a pointer to the last element, so we
   // have push_back() and constant time splice_after()
-  typedef boost::intrusive::slist<
+  using BlockList = boost::intrusive::slist<
       Block,
       boost::intrusive::member_hook<Block, BlockLink, &Block::link>,
       boost::intrusive::constant_time_size<false>,
-      boost::intrusive::cache_last<true>>
-      BlockList;
+      boost::intrusive::cache_last<true>>;
 
-  typedef boost::intrusive::slist<
+  using LargeBlockList = boost::intrusive::slist<
       LargeBlock,
       boost::intrusive::member_hook<LargeBlock, BlockLink, &LargeBlock::link>,
       boost::intrusive::constant_time_size<false>,
-      boost::intrusive::cache_last<true>>
-      LargeBlockList;
+      boost::intrusive::cache_last<true>>;
 
   void* allocateSlow(size_t size);
 

folly/memory/JemallocHugePageAllocator.cpp

@@ -53,15 +53,9 @@
 #define MADV_HUGEPAGE 0
 
 #if !defined(JEMALLOC_VERSION_MAJOR) || (JEMALLOC_VERSION_MAJOR < 5)
-typedef struct extent_hooks_s extent_hooks_t;
-typedef void*(
-    extent_alloc_t)(extent_hooks_t*,
-                    void*,
-                    size_t,
-                    size_t,
-                    bool*,
-                    bool*,
-                    unsigned);
+using extent_hooks_t = struct extent_hooks_s;
+using extent_alloc_t =
+    void*(extent_hooks_t*, void*, size_t, size_t, bool*, bool*, unsigned);
 struct extent_hooks_s {
   extent_alloc_t* alloc;
 };