Use Sema's LocInfoType to pass and preserve type source info through the Parser.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79395 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExprObjC.cpp b/lib/Sema/SemaExprObjC.cpp
index 553a32f..3b28fae 100644
--- a/lib/Sema/SemaExprObjC.cpp
+++ b/lib/Sema/SemaExprObjC.cpp
@@ -120,7 +120,8 @@
                                                  SourceLocation LParenLoc,
                                                  TypeTy *ty,
                                                  SourceLocation RParenLoc) {
-  QualType EncodedType = QualType::getFromOpaquePtr(ty);
+  // FIXME: Preserve type source info ?
+  QualType EncodedType = GetTypeFromParser(ty);
 
   return BuildObjCEncodeExpression(AtLoc, EncodedType, RParenLoc);
 }