feat(nargo): Add lsp command to start server that reports no capabi…

…lities (#1560)

* feat(nargo): Add lsp command to start server that reports no capabilities

* move async-lsp dep into crates to use different features

* cspell

* utilize pattern in matches

* handle shutdown and exit to make vscode plugin happy

* rename nargo_lsp to noir_lsp & move dir

* add lsp to the crates readme

Cargo.toml

@@ -30,6 +30,7 @@ fm = { path = "crates/fm" }
 iter-extended = { path = "crates/iter-extended" }
 nargo = { path = "crates/nargo" }
 nargo_cli = { path = "crates/nargo_cli" }
+noir_lsp = { path = "crates/lsp" }
 noirc_abi = { path = "crates/noirc_abi" }
 noirc_driver = { path = "crates/noirc_driver" }
 noirc_errors = { path = "crates/noirc_errors" }
@@ -44,9 +45,11 @@ codespan-reporting = "0.9.5"
 chumsky = { git = "https://github.com/jfecher/chumsky", rev = "ad9d312" }
 dirs = "4"
 serde = { version = "1.0.136", features = ["derive"] }
+serde_json = "1.0"
 smol_str = "0.1.17"
 thiserror = "1.0.21"
 toml = "0.7.2"
+tower = "0.4"
 url = "2.2.0"
 wasm-bindgen = { version = "0.2.83", features = ["serde-serialize"] }
 wasm-bindgen-test = "0.3.33"

crates/lsp/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "noir_lsp"
+description = "Language server for Noir"
+version.workspace = true
+authors.workspace = true
+edition.workspace = true
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde_json.workspace = true
+tower.workspace = true
+async-lsp = { version = "0.0.4", default-features = false, features = ["omni-trait"] }
+lsp-types = "0.94"
+
+[dev-dependencies]
+tokio = { version = "1.0", features = ["macros"] }