[Object] keep trailing '\0' out of StringRef when parsing mach-o bindings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217935 91177308-0d34-0410-b5e6-96231b3b80d8

Author: Nick Kledzik

lib/Object/MachOObjectFile.cpp

@@ -1957,9 +1957,9 @@ void MachOBindEntry::moveNext() {
       while (*Ptr) {
         ++Ptr;
       }
-      ++Ptr;
       SymbolName = StringRef(reinterpret_cast<const char*>(SymStart),
                              Ptr-SymStart);
+      ++Ptr;
       DEBUG_WITH_TYPE(
           "mach-o-bind",
           llvm::dbgs() << "BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM: "