Add forgotten to commit protection and check clause.

This should have landed in 7554be9571.

lib/Interpreter/ValueExtractionSynthesizer.cpp

@@ -413,11 +413,15 @@ namespace {
       m_gClingVD = cast<VarDecl>(utils::Lookup::Named(m_Sema, "gCling", NSD));
       NSD = utils::Lookup::Namespace(m_Sema, "internal", NSD);
 
+      // FIXME: We should special case the child interpreter. Having to do that
+      // looks like a design flaw.
+      if (!m_isChildInterpreter) {
         m_Sema->LookupQualifiedName(R, m_Sema->getStdNamespace());
         assert(!R.empty() && "Cannot find std::addressof");
         m_UnresolvedStdAddressOf
           = m_Sema->BuildDeclarationNameExpr(CSS, R, /*ADL*/ false).get();
       }
+    }
 
     R.clear();
     R.setLookupName(&m_Context->Idents.get("setValueNoAlloc"));

test/Prompt/ValuePrinter/Regression.C

@@ -115,3 +115,4 @@ struct OverloadedAddrOf {
   }
 };
 OverloadedAddrOf overloadedAddrOf
+// CHECK: (OverloadedAddrOf &) @0x{{[0-9a-f]+}}