Fix REPL's prev line capturing

Author: st0012

lib/debug/local.rb

@@ -130,12 +130,22 @@ def tui?
       true
     end
 
+    def store_prev_line(line)
+      @prev_line = line
+    end
+
     def store_tui_data(data)
       @ui_data = data
     end
 
     def puts str = nil
       @screen.draw_windows(@ui_data)
+
+      if @prev_line
+        @screen.draw_repl(@prev_line)
+        @prev_line = nil
+      end
+
       @screen.draw_repl(str)
       @screen.render!
     end

lib/debug/session.rb

@@ -404,6 +404,10 @@ def process_command line
         @repl_prev_line = line
       end
 
+      if @ui.tui?
+        @ui.store_prev_line("#{prompt}#{@repl_prev_line}")
+      end
+
       /([^\s]+)(?:\s+(.+))?/ =~ line
       cmd, arg = $1, $2
 
@@ -1773,10 +1777,7 @@ def after_fork_parent
     end
 
     def capture_tui_data(tui_data)
-      if tui_data
-        tui_data[:repl] = "#{prompt}#{@repl_prev_line}"
-        @ui.store_tui_data(tui_data)
-      end
+      @ui.store_tui_data(tui_data) if tui_data
     end
 
     SUPPORTED_WINDOWS = {