* fixed nimsuggest crash when opening a .nim file, that contain a {.f…

…atal: "msg".} pragma. (#23325)

compiler/msgs.nim

@@ -429,7 +429,8 @@ To create a stacktrace, rerun compilation with './koch temp $1 <file>', see $2 f
 proc handleError(conf: ConfigRef; msg: TMsgKind, eh: TErrorHandling, s: string, ignoreMsg: bool) =
   if msg in fatalMsgs:
     if conf.cmd == cmdIdeTools: log(s)
-    quit(conf, msg)
+    if conf.cmd != cmdIdeTools or msg != errFatal:
+      quit(conf, msg)
   if msg >= errMin and msg <= errMax or
       (msg in warnMin..hintMax and msg in conf.warningAsErrors and not ignoreMsg):
     inc(conf.errorCounter)

nimsuggest/tests/tfatal1.nim

@@ -0,0 +1,15 @@
+{.warning: "I'm a warning!".}
+{.error: "I'm an error!".}
+{.fatal: "I'm a fatal error!".}
+{.error: "I'm an error after fatal error!".}
+
+#[!]#
+discard """
+$nimsuggest --tester $file
+>chk $1
+chk;;skUnknown;;;;Hint;;???;;0;;-1;;">> (toplevel): import(dirty): tests/tfatal1.nim [Processing]";;0
+chk;;skUnknown;;;;Warning;;$file;;1;;9;;"I\'m a warning! [User]";;0
+chk;;skUnknown;;;;Error;;$file;;2;;7;;"I\'m an error!";;0
+chk;;skUnknown;;;;Error;;$file;;3;;7;;"fatal error: I\'m a fatal error!";;0
+chk;;skUnknown;;;;Error;;$file;;4;;7;;"I\'m an error after fatal error!";;0
+"""