[core] check that indirect buffers have not been destroyed (#7534)

Author: teoxoy

wgpu-core/src/command/compute.rs

@@ -865,6 +865,7 @@ fn dispatch_indirect(
         .require_downlevel_flags(wgt::DownlevelFlags::INDIRECT_EXECUTION)?;
 
     buffer.check_usage(wgt::BufferUsages::INDIRECT)?;
+    buffer.check_destroyed(&state.snatch_guard)?;
 
     if offset % 4 != 0 {
         return Err(ComputePassErrorInner::UnalignedIndirectBufferOffset(offset));

wgpu-core/src/command/render.rs

@@ -2523,6 +2523,7 @@ fn multi_draw_indirect(
 
     indirect_buffer.same_device_as(cmd_buf.as_ref())?;
     indirect_buffer.check_usage(BufferUsages::INDIRECT)?;
+    indirect_buffer.check_destroyed(state.snatch_guard)?;
 
     if offset % 4 != 0 {
         return Err(RenderPassErrorInner::UnalignedIndirectBufferOffset(offset));