Make InitHeaderSearch::AddPath and HeaderSearchOptions::AddPath consistent
use an "IgnoreSysRoot" argument.  HeaderSearchOptions had been using the
opposite form with "IsSysRootRelative", which made for much confusion when
looking at true/false values in calls in AddPath.  No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133550 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/InitHeaderSearch.cpp b/lib/Frontend/InitHeaderSearch.cpp
index 238ff7f..40036fe 100644
--- a/lib/Frontend/InitHeaderSearch.cpp
+++ b/lib/Frontend/InitHeaderSearch.cpp
@@ -1094,7 +1094,7 @@
   for (unsigned i = 0, e = HSOpts.UserEntries.size(); i != e; ++i) {
     const HeaderSearchOptions::Entry &E = HSOpts.UserEntries[i];
     Init.AddPath(E.Path, E.Group, false, E.IsUserSupplied, E.IsFramework,
-                 !E.IsSysRootRelative);
+                 E.IgnoreSysRoot);
   }
 
   // Add entries from CPATH and friends.