slice-errors now report the parameters to the slicing operation

basis/debugger/debugger.factor

@@ -206,9 +206,8 @@ M: no-cond summary
 M: no-case summary
     drop "Fall-through in case" ;
 
-M: slice-error error.
-    "Cannot create slice because " write
-    reason>> print ;
+M: slice-error summary
+    drop "Cannot create slice" ;
 
 M: bounds-error summary drop "Sequence index out of bounds" ;
 

core/sequences/sequences.factor

@@ -190,7 +190,7 @@ TUPLE: slice
 : collapse-slice ( m n slice -- m' n' seq )
     [ from>> ] [ seq>> ] bi >r tuck + >r + r> r> ; inline
 
-ERROR: slice-error reason ;
+ERROR: slice-error from to seq reason ;
 
 : check-slice ( from to seq -- from to seq )
     pick 0 < [ "start < 0" slice-error ] when