Change order in which components of errors are printed.

Author: objecthub

Sources/LispKit/Compiler/RuntimeError.swift

@@ -192,23 +192,17 @@ public class RuntimeError: Error, Hashable, CustomStringConvertible {
 
   public func printableDescription(typeOpen: String = "[",
                                    typeClose: String = "] ",
-                                   positionHeader: String? = "\nat: ",
                                    irritantHeader: String? = "\nirritants: ",
                                    irritantSeparator: String = ", ",
+                                   positionHeader: String? = "\nat: ",
                                    stackTraceHeader: String? = "\nstack trace: ",
                                    stackTraceSeparator: String = ", ") -> String {
     var usedIrritants = Set<Int>()
     let message = self.replacePlaceholders(in: self.descriptor.messageTemplate,
                                            with: self.irritants,
                                            recordingUsage: &usedIrritants)
-    let position: String
-    if let positionHeader = positionHeader, !self.pos.isUnknown {
-      position = positionHeader + self.pos.description
-    } else {
-      position = ""
-    }
     var builder = StringBuilder(
-          prefix: "\(typeOpen)\(self.descriptor.typeDescription)\(typeClose)\(message)\(position)",
+          prefix: "\(typeOpen)\(self.descriptor.typeDescription)\(typeClose)\(message)",
           postfix: "",
           separator: irritantSeparator,
           initial: irritantHeader ?? "")
@@ -219,6 +213,9 @@ public class RuntimeError: Error, Hashable, CustomStringConvertible {
         }
       }
     }
+    if let positionHeader = positionHeader, !self.pos.isUnknown {
+      builder.append(positionHeader + self.pos.description)
+    }
     if let stackTraceHeader = stackTraceHeader,
        let stackTrace = self.stackTrace {
       builder = StringBuilder(prefix: builder.description,