Add ra_proc_macro

Cargo.lock

@@ -1081,6 +1081,14 @@ dependencies = [
  "drop_bomb",
 ]
 
+[[package]]
+name = "ra_proc_macro"
+version = "0.1.0"
+dependencies = [
+ "ra_mbe",
+ "ra_tt",
+]
+
 [[package]]
 name = "ra_prof"
 version = "0.1.0"

crates/ra_proc_macro/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+edition = "2018"
+name = "ra_proc_macro"
+version = "0.1.0"
+authors = ["rust-analyzer developers"]
+publish = false
+
+[lib]
+doctest = false
+
+[dependencies]
+ra_tt = { path = "../ra_tt" }
+ra_mbe = { path = "../ra_mbe" }

crates/ra_proc_macro/src/lib.rs

@@ -0,0 +1,7 @@
+#[cfg(test)]
+mod tests {
+    #[test]
+    fn it_works() {
+        assert_eq!(2 + 2, 4);
+    }
+}