[ELF] Be slightly more consistent, use uint8_t instead of unsigned char.

llvm-svn: 262660
diff --git a/lld/ELF/OutputSections.cpp b/lld/ELF/OutputSections.cpp
index 3274ec0..c717344 100644
--- a/lld/ELF/OutputSections.cpp
+++ b/lld/ELF/OutputSections.cpp
@@ -1499,7 +1499,7 @@
     SymbolBody *Body = P.first;
     size_t StrOff = P.second;
 
-    unsigned char Type = STT_NOTYPE;
+    uint8_t Type = STT_NOTYPE;
     uintX_t Size = 0;
     if (const Elf_Sym *InputSym = getElfSym<ELFT>(*Body)) {
       Type = InputSym->getType();