Promote 'const', 'copy', 'fn' to strict keywords

src/libsyntax/parse/parser.rs

@@ -2329,7 +2329,9 @@ impl parser {
                           | ~"owned" => {
                             self.obsolete(copy self.span,
                                           ObsoleteLowerCaseKindBounds);
-                            None
+                            // Bogus value, but doesn't matter, since
+                            // is an error
+                            Some(bound_send)
                           }
 
                           _ => None

src/libsyntax/parse/token.rs

@@ -414,8 +414,7 @@ fn temporary_keyword_table() -> HashMap<~str, ()> {
 fn restricted_keyword_table() -> HashMap<~str, ()> {
     let words = str_hash();
     let keys = ~[
-        ~"const", ~"copy",
-        ~"fail", ~"fn",
+        ~"fail",
         ~"unsafe"
     ];
     for keys.each |word| {
@@ -430,9 +429,10 @@ fn strict_keyword_table() -> HashMap<~str, ()> {
     let keys = ~[
         ~"as", ~"assert",
         ~"break",
+        ~"const", ~"copy",
         ~"do", ~"drop",
         ~"else", ~"enum", ~"export", ~"extern",
-        ~"false", ~"for",
+        ~"false", ~"fn", ~"for",
         ~"if", ~"impl",
         ~"let", ~"log", ~"loop",
         ~"match", ~"mod", ~"move", ~"mut",