backtrace_locations

# File activesupport/lib/active_support/syntax_error_proxy.rb, line 34
    def backtrace_locations
      return nil if super.nil?

      parse_message_for_trace.map { |trace|
        file, line = trace.match(/^(.+?):(\d+).*$/, &:captures) || trace
        BacktraceLocation.new(file, line.to_i, trace)
        # We have to wrap these backtrace locations because we need the
        # spot information to come from the originating exception, not the
        # proxy object that's generating these
      } + super.map { |loc| BacktraceLocationProxy.new(loc, self) }
    end