added ML/ml_lex.ML;

--- a/src/Pure/General/ROOT.ML	Sat Sep 15 19:25:19 2007 +0200
+++ b/src/Pure/General/ROOT.ML	Sat Sep 15 19:25:32 2007 +0200
@@ -12,6 +12,7 @@
 use "scan.ML";
 use "source.ML";
 use "symbol.ML";
+use "../ML/ml_lex.ML";
 use "secure.ML";
 
 use "stack.ML";

--- a/src/Pure/IsaMakefile	Sat Sep 15 19:25:19 2007 +0200
+++ b/src/Pure/IsaMakefile	Sat Sep 15 19:25:32 2007 +0200
@@ -51,7 +51,7 @@
   ML-Systems/polyml-5.1.ML ML-Systems/polyml-interrupt-timeout.ML		\
   ML-Systems/polyml-old-basis.ML ML-Systems/polyml-posix.ML			\
   ML-Systems/polyml.ML ML-Systems/poplogml.ML ML-Systems/proper_int.ML		\
-  ML-Systems/smlnj.ML ML/ml_context.ML ML/ml_syntax.ML				\
+  ML-Systems/smlnj.ML ML/ml_context.ML ML/ml_lex.ML ML/ml_syntax.ML		\
   Proof/extraction.ML Proof/proof_rewrite_rules.ML Proof/proof_syntax.ML	\
   Proof/proofchecker.ML Proof/reconstruct.ML ProofGeneral/ROOT.ML		\
   ProofGeneral/parsing.ML ProofGeneral/pgip.ML					\