[scudo] Inline getScudoChunk function.

[flowerhack]

Summary

getScudoChunk function is implicitly inlined for optimized builds on
clang, but not on gcc. It's a small enough function that it seems
sensible enough to just inline it by default.

lib/scudo/scudo_allocator.cpp

if (UNLIKELY(!atomic_compare_exchange_strong(AtomicHeader,
                                                  &OldPackedHeader,
                                                  NewPackedHeader,
                                                  memory_order_relaxed))) {
       dieWithMessage("ERROR: race on chunk header at address %p\n", this);
     }
   }
 };
 
-ScudoChunk *getScudoChunk(uptr UserBeg) {
+INLINE ScudoChunk *getScudoChunk(uptr UserBeg) {
   return reinterpret_cast<ScudoChunk *>(UserBeg - AlignedChunkHeaderSize);
 }
 
 struct QuarantineCallback {
   explicit QuarantineCallback(AllocatorCache *Cache)
     : Cache_(Cache) {}
 
   // Chunk recycling function, returns a quarantined chunk to the backend,