Per C++ [class.bit]p2, unnamed bit-fields are not members. Fixes PR10289.

llvm-svn: 141549
diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index f5cfbca..e9d4b82 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -490,7 +490,7 @@
          Field = structDecl->field_begin(),
          FieldEnd = structDecl->field_end();
        Field != FieldEnd; ++Field) {
-    if ((*Field)->getIdentifier() || !(*Field)->isBitField())
+    if (!Field->isUnnamedBitfield())
       ++InitializableMembers;
   }
   if (structDecl->isUnion())