Simplify another function that doesn't fail.

llvm-svn: 238703
diff --git a/llvm/tools/llvm-cxxdump/llvm-cxxdump.cpp b/llvm/tools/llvm-cxxdump/llvm-cxxdump.cpp
index 447d55a..ef42211 100644
--- a/llvm/tools/llvm-cxxdump/llvm-cxxdump.cpp
+++ b/llvm/tools/llvm-cxxdump/llvm-cxxdump.cpp
@@ -204,9 +204,10 @@
     StringRef SecContents;
     if (error(Sec.getContents(SecContents)))
       return;
-    uint64_t SymAddress, SymSize;
-    if (error(Sym.getAddress(SymAddress)) || error(Sym.getSize(SymSize)))
+    uint64_t SymAddress;
+    if (error(Sym.getAddress(SymAddress)))
       return;
+    uint64_t SymSize = Sym.getSize();
     uint64_t SecAddress = Sec.getAddress();
     uint64_t SecSize = Sec.getSize();
     uint64_t SymOffset = SymAddress - SecAddress;