stricter symbol lookup in generics

lib/system/assign.nim

@@ -144,6 +144,8 @@ proc objectInit(dest: Pointer, typ: PNimType) =
   
 # ---------------------- assign zero -----------------------------------------
 
+# dummy declaration; XXX we need 'mixin' here
+proc destroy(x: int) = nil
 proc nimDestroyRange*[T](r: T) =
   # internal proc used for destroying sequences and arrays
   for i in countup(0, r.len - 1): destroy(r[i])

lib/system/profiler.nim

@@ -11,10 +11,7 @@
 # code generator. The idea is to inject the instruction stream
 # with 'nimProfile()' calls. These calls are injected at every loop end
 # (except perhaps loops that have no side-effects). At every Nth call a
-# stack trace is taken. A stack tace is a list of cstrings. We have a count
-# table of those.
-# 
-# The nice thing about this profiler is that it's completely time independent!
+# stack trace is taken. A stack tace is a list of cstrings.
 
 {.push profiler: off.}