internal: vendor query-group-macro in rust-analyzer

internal: test `LoggerDb` to avoid dead code warnings

internal: flatten match expressions

internal: test portable-atomic changes in Salsa; clippy; fmt

Author: davidbarsky

Cargo.lock

@@ -0,0 +1,23 @@
+[package]
+name = "query-group-macro"
+version = "0.0.0"
+repository.workspace = true
+description = "A macro mimicking the `#[salsa::query_group]` macro for migrating to new Salsa"
+
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+rust-version.workspace = true
+
+[lib]
+proc-macro = true
+
+[dependencies]
+heck = "0.5.0"
+proc-macro2 = "1.0"
+quote = "1.0"
+syn = { version = "2.0", features = ["full", "extra-traits"] }
+salsa = { git = "https://github.com/salsa-rs/salsa.git", rev = "c149464b86bd2d59998fc85b3d1e29ca91925745" }
+
+[dev-dependencies]
+expect-test = "1.5.0"