Shell: Name the pipe ends correctly

Author: https://github.com/alimpfard
Commit: https://github.com/SerenityOS/serenity/commit/217eca3d3f1
Pull-request: https://github.com/SerenityOS/serenity/pull/3165
Issue: https://github.com/SerenityOS/serenity/issues/3160
Reviewed-by: https://github.com/BenWiederhake
Reviewed-by: https://github.com/awesomekling
Reviewed-by: https://github.com/bugaevc

Shell/AST.cpp

@@ -1135,10 +1135,10 @@ RefPtr<Value> Pipe::run(RefPtr<Shell> shell)
     auto last_in_left = left.take_last();
     auto first_in_right = right.take_first();
 
-    auto pipe_write_end = FdRedirection::create(STDIN_FILENO, -1, Rewiring::Close::Destination);
-    auto pipe_read_end = FdRedirection::create(STDOUT_FILENO, -1, pipe_write_end, Rewiring::Close::RefreshDestination);
-    first_in_right.redirections.append(pipe_write_end);
-    last_in_left.redirections.append(pipe_read_end);
+    auto pipe_read_end = FdRedirection::create(STDIN_FILENO, -1, Rewiring::Close::Destination);
+    auto pipe_write_end = FdRedirection::create(STDOUT_FILENO, -1, pipe_read_end, Rewiring::Close::RefreshDestination);
+    first_in_right.redirections.append(pipe_read_end);
+    last_in_left.redirections.append(pipe_write_end);
     last_in_left.should_wait = false;
     last_in_left.is_pipe_source = true;