Fix the gcc build:

InputFiles.h:98:53: error: invalid use of incomplete type ‘class lld::elf2::SymbolBody’
     return SymbolBodies[SymbolIndex - FirstNonLocal]->getReplacement();

llvm-svn: 246262

lld/ELF/InputFiles.h

@@ -11,6 +11,8 @@
 #define LLD_ELF_INPUT_FILES_H
 
 #include "Chunks.h"
+#include "Symbols.h"
+
 #include "lld/Core/LLVM.h"
 #include "llvm/Object/ELF.h"