small fixes

tests/hashtable.nim

@@ -1,8 +1,12 @@
 import ../types/hashtable
 import ../types/ndstring
+import ../types/stringutils
 
 import strformat
 
+proc equal*(l, r: string): bool =
+  l == r
+
 proc testHashtables* =
   var tbl = newTable[string, int]()
 

types/hashtable.nim

@@ -119,7 +119,7 @@ proc tableDelete*[U, V](tbl: Table[U, V], key: U): bool =
     return false
   
   let entry = findEntry(tbl.entries, tbl.cap, key)
-  if not entry[].entryStatus == esAlive:
+  if entry[].entryStatus != esAlive:
     return false
 
   entry[].entryStatus = esTombstone