Add ra_proc_macro

Author: edwin0cheng

Cargo.lock

@@ -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/Cargo.toml

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