Rollup merge of rust-lang#106436 - CarsonV:doctest_query_impl, r=jyn514

Enable doctests for rustc_query_impl

doctests worked out of the box for query_impl on my local machine. Working towards rust-lang#99144

Author: matthiaskrgr

compiler/rustc_query_impl/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.0.0"
 edition = "2021"
 
 [lib]
-doctest = false
+
 
 [dependencies]
 measureme = "10.0.0"