Caught and fixed a typo in r262572.

I should have checked and imported D's in-class initializer.
Instead I accidentally used ToField's in-class initializer,
which is always NULL so ToField will never get one.

<rdar://problem/24943405>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@262576 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/ASTImporter.cpp

@@ -3038,7 +3038,7 @@ Decl *ASTNodeImporter::VisitFieldDecl(FieldDecl *D) {
                                          D->getInClassInitStyle());
   ToField->setAccess(D->getAccess());
   ToField->setLexicalDeclContext(LexicalDC);
-  if (Expr *FromInitializer = ToField->getInClassInitializer()) {
+  if (Expr *FromInitializer = D->getInClassInitializer()) {
     Expr *ToInitializer = Importer.Import(FromInitializer);
     if (ToInitializer)
       ToField->setInClassInitializer(ToInitializer);