Swap the DIFile in DILexicalBlockFile out for the raw name/directory pair

This is the last change in transitioning all DIScopes to have a common prefix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177756 91177308-0d34-0410-b5e6-96231b3b80d8

lib/IR/DIBuilder.cpp

@@ -1007,7 +1007,7 @@ DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope,
                                                      DIFile File) {
   Value *Elts[] = {
     GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
-    File,
+    File.getFileNode(),
     Scope
   };
   DILexicalBlockFile R(MDNode::get(VMContext, Elts));