Fixed: [ Issue 56 ] "message" is a valid name for message fields
https://code.google.com/p/protobuf-dt/issues/detail?id=56

com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/Protobuf.xtext

diff --git a/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/Protobuf.xtext b/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/Protobuf.xtext
index 3f6fc82..9cc6fd4 100644
--- a/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/Protobuf.xtext
+++ b/com.google.eclipse.protobuf/src/com/google/eclipse/protobuf/Protobuf.xtext
@@ -56,7 +56,7 @@
   '}'(';')?;
 
 Property:
-  modifier=Modifier type=AbstractTypeReference name=ID '=' index=INT 
+  modifier=Modifier type=AbstractTypeReference name=(ID | 'message') '=' index=INT 
   (
     ('[' 'default' '=' default=ValueRef ']') |
     ('[' 'default' '=' default=ValueRef (',' fieldOptions+=FieldOption)* ']') |