Remove C++11-isms I just introduced in r167482

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167483 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/ModuleMap.cpp b/lib/Lex/ModuleMap.cpp
index 2abe482..8a936fa 100644
--- a/lib/Lex/ModuleMap.cpp
+++ b/lib/Lex/ModuleMap.cpp
@@ -1507,7 +1507,7 @@
     case MMToken::ExcludeKeyword: {
       if (ActiveModule) {
         Diags.Report(Tok.getLocation(), diag::err_mmap_expected_inferred_member)
-          << (ActiveModule != nullptr);
+          << (ActiveModule != 0);
         consumeToken();
         break;
       }
@@ -1527,7 +1527,7 @@
     case MMToken::ExportKeyword:
       if (!ActiveModule) {
         Diags.Report(Tok.getLocation(), diag::err_mmap_expected_inferred_member)
-          << (ActiveModule != nullptr);
+          << (ActiveModule != 0);
         consumeToken();
         break;
       }
@@ -1547,7 +1547,7 @@
     case MMToken::UmbrellaKeyword:
     default:
       Diags.Report(Tok.getLocation(), diag::err_mmap_expected_inferred_member)
-          << (ActiveModule != nullptr);
+          << (ActiveModule != 0);
       consumeToken();
       break;        
     }