Push nested-name-specifier source location information into using directives.

llvm-svn: 126489
diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 4258325..ccaeaa6 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -1103,8 +1103,8 @@
 
 bool CursorVisitor::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
   // Visit nested-name-specifier.
-  if (NestedNameSpecifier *Qualifier = D->getQualifier())
-    if (VisitNestedNameSpecifier(Qualifier, D->getQualifierRange()))
+  if (NestedNameSpecifierLoc QualifierLoc = D->getQualifierLoc())
+    if (VisitNestedNameSpecifierLoc(QualifierLoc))
       return true;
 
   return Visit(MakeCursorNamespaceRef(D->getNominatedNamespaceAsWritten(),