Merge #8182

8182: Trim down IPC json size r=edwin0cheng a=edwin0cheng

This PR try to trim down the json of proc macro IPC by ignore token id if it equals to `TokenId::unspecifed`. 

Test by following commands:
```bash
$ git clone https://github.com/gluon-lang/lsp-types.git  
$ export RA_LOG="proc_macro_api=debug"
$ rust-analyzer -q analysis-stats --load-output-dirs --with-proc-macro . 2> debug.log
$ cat debug.log | awk '/^\[DEBUG proc_macro_api::msg\] >/ {print substr($0,31)}' >expand.log
$ stat -c "%s" expand.log
```

Before: 37576726
After: 28551718

So it trimed down 75%.  

bors r+





Co-authored-by: Edwin Cheng <[email protected]>

0 files changed, 0 insertions, 0 deletions