memory: put FlushICache in hl namespace

Author: Rafael Stahl

src/hacklib/src/Memory_UNIX.cpp

@@ -94,7 +94,7 @@ void hl::PageCommit(void* p, size_t n, hl::Protection protection)
 }
 
 
-void FlushICache(void* p, size_t n)
+void hl::FlushICache(void* p, size_t n)
 {
     __builtin___clear_cache((char*)p, (char*)p + n);
 }

src/hacklib/src/Memory_WIN32.cpp

@@ -124,7 +124,7 @@ void hl::PageCommit(void* p, size_t n, hl::Protection protection)
 }
 
 
-void FlushICache(void* p, size_t n)
+void hl::FlushICache(void* p, size_t n)
 {
     HL_APICHECK(FlushInstructionCache(GetCurrentProcess(), p, n));
 }