Move Log from Core -> Utility.

All references to Host and Core have been removed, so this
class can now safely be lowered into Utility.

Differential Revision: https://reviews.llvm.org/D30559

llvm-svn: 296909
diff --git a/lldb/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp b/lldb/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp
index 79e8240..237c0aa 100644
--- a/lldb/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp
+++ b/lldb/source/Plugins/ExpressionParser/Clang/ClangPersistentVariables.cpp
@@ -10,8 +10,8 @@
 #include "ClangPersistentVariables.h"
 
 #include "lldb/Core/DataExtractor.h"
-#include "lldb/Core/Log.h"
 #include "lldb/Core/Value.h"
+#include "lldb/Utility/Log.h"
 #include "lldb/Utility/StreamString.h"
 
 #include "clang/AST/Decl.h"