collected all the imports and names

how to compare macro to import path

add more imports to test

Author: DevinR528

clippy_lints/src/lib.rs

@@ -60,6 +60,7 @@ extern crate rustc_trait_selection;
 #[allow(unused_extern_crates)]
 extern crate rustc_typeck;
 
+use rustc::session::Session;
 use rustc_data_structures::fx::FxHashSet;
 use rustc_lint::LintId;
 use rustc_session::Session;

clippy_lints/src/macro_use.rs

@@ -229,4 +229,6 @@ impl<'l, 'txc> LateLintPass<'l, 'txc> for MacroUseImports {
             }
         }
     }
+
+    mac.path.clone()
 }