remove error debug code with hint for the future

Author: saem

compiler/errorreporting.nim

@@ -89,8 +89,8 @@ proc errorToString*(
   of WrappedError:
     result = ""
 
-  # XXX: temporary, remove before merging
-  result = result & " compiler error origin: " & $n.compilerInstInfo()
+  # useful for debugging where error nodes are generated
+  # result = result & " compiler error origin: " & $n.compilerInstInfo()
 
 iterator walkErrorsOld*(config: ConfigRef; n: PNode): PNode {.
   deprecated: "linear error traversal is likely not useful".} =