[Backport 1.6] When NimScript errors prevents NimSuggest from Init (#23348)

compiler/msgs.nim

@@ -425,7 +425,10 @@ proc handleError(conf: ConfigRef; msg: TMsgKind, eh: TErrorHandling, s: string,
     conf.exitcode = 1'i8
     if conf.errorCounter >= conf.errorMax:
       # only really quit when we're not in the new 'nim check --def' mode:
-      if conf.ideCmd == ideNone:
+      when defined(nimsuggest):
+        #we need to inform the user that something went wrong when initializing NimSuggest
+        raiseRecoverableError(s)
+      else:
         quit(conf, msg)
     elif eh == doAbort and conf.cmd != cmdIdeTools:
       quit(conf, msg)