helpers2 now has a real name

compiler/cgen.nim

@@ -16,7 +16,7 @@ import
   condsyms, rodutils, renderer, idgen, cgendata, ccgmerge, semfold, aliases,
   lowerings, tables, sets, ndi, lineinfos, pathutils, transf
 
-import system/helpers2
+import system/indexerrors
 
 when not defined(leanCompiler):
   import semparallel

compiler/semfold.nim

@@ -15,7 +15,7 @@ import
   nversion, platform, math, msgs, os, condsyms, idents, renderer, types,
   commands, magicsys, modulegraphs, strtabs, lineinfos
 
-import system/helpers2
+import system/indexerrors
 
 proc newIntNodeT*(intVal: BiggestInt, n: PNode; g: ModuleGraph): PNode =
   case skipTypes(n.typ, abstractVarRange).kind

lib/system/chcks.nim

@@ -8,7 +8,7 @@
 #
 
 # Implementation of some runtime checks.
-import system/helpers2
+import system/indexerrors
 
 proc raiseRangeError(val: BiggestInt) {.compilerproc, noinline.} =
   when hostOS == "standalone":