move IdentifierTable.h from liblex to libbasic.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@42730 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/StmtDumper.cpp b/AST/StmtDumper.cpp
index 6f25e12..6476074 100644
--- a/AST/StmtDumper.cpp
+++ b/AST/StmtDumper.cpp
@@ -15,7 +15,7 @@
 #include "clang/AST/StmtVisitor.h"
 #include "clang/AST/Decl.h"
 #include "clang/AST/ExprCXX.h"
-#include "clang/Lex/IdentifierTable.h"
+#include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/SourceManager.h"
 #include "llvm/Support/Compiler.h"
 #include <cstdio>