Set the symbol size in the symbol table.

llvm-svn: 246086
diff --git a/lld/ELF/Writer.cpp b/lld/ELF/Writer.cpp
index 3b01631..bde4897 100644
--- a/lld/ELF/Writer.cpp
+++ b/lld/ELF/Writer.cpp
@@ -260,6 +260,7 @@
       uint8_t Type = InputSym->getType();
       uint8_t Binding = InputSym->getBinding();
       ESym->setBindingAndType(Binding, Type);
+      ESym->st_size = InputSym->st_size;
     }
 
     if (Section) {