Rename Chunks.(h|cpp) to InputSection.(h|cpp). NFC.

llvm-svn: 248226
diff --git a/lld/ELF/Symbols.cpp b/lld/ELF/Symbols.cpp
index c3c90e0..204a0d6 100644
--- a/lld/ELF/Symbols.cpp
+++ b/lld/ELF/Symbols.cpp
@@ -8,7 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "Symbols.h"
-#include "Chunks.h"
+#include "InputSection.h"
 #include "Error.h"
 #include "InputFiles.h"