Added more tests for macros. Closes rust-lang#15.

It seems the issues we had have been resolved upstream.

Author: ibabushkin

tests/cases/macros/new.rs

@@ -1,14 +1,26 @@
 #![feature(decl_macro, use_extern_macros)]
 pub struct Item;
 
+pub macro foo() { Item }
+
 #[macro_export]
 macro_rules! bar {
     () => {
         Item
     }
 }
 
-#[allow(dead_code)]
-fn abc() -> Item {
+pub macro baz() { Item }
+
+pub macro quux1() { Item }
+
+#[macro_export]
+macro_rules! quux2 {
+    () => {
+        Item
+    }
+}
+
+pub fn abc() -> Item {
     bar!()
 }

tests/cases/macros/old.rs

@@ -1,8 +1,26 @@
 #![feature(decl_macro, use_extern_macros)]
 pub struct Item;
 
+pub macro foo() { Item }
+
 pub macro bar() { Item }
 
-fn abc() -> Item {
+#[macro_export]
+macro_rules! baz {
+    () => {
+        Item
+    }
+}
+
+pub macro qux1() { Item }
+
+#[macro_export]
+macro_rules! qux2 {
+    () => {
+        Item
+    }
+}
+
+pub fn abc() -> Item {
     bar!()
 }

tests/cases/macros/stdout

@@ -1 +1,41 @@
-version bump: 1.0.0 -> (patch) -> 1.0.1
+version bump: 1.0.0 -> (breaking) -> 2.0.0
+warning: path changes to `qux1`
+  --> $REPO_PATH/tests/cases/macros/old.rs:15:5
+   |
+15 | pub macro qux1() { Item }
+   |     ^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: removed definition (breaking)
+
+warning: path changes to `qux2`
+  --> $REPO_PATH/tests/cases/macros/old.rs:18:1
+   |
+18 | / macro_rules! qux2 {
+19 | |     () => {
+20 | |         Item
+21 | |     }
+22 | | }
+   | |_^
+   |
+   = note: removed definition (breaking)
+
+warning: path changes to `quux1`
+  --> $REPO_PATH/tests/cases/macros/new.rs:15:5
+   |
+15 | pub macro quux1() { Item }
+   |     ^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: added definition (technically breaking)
+
+warning: path changes to `quux2`
+  --> $REPO_PATH/tests/cases/macros/new.rs:18:1
+   |
+18 | / macro_rules! quux2 {
+19 | |     () => {
+20 | |         Item
+21 | |     }
+22 | | }
+   | |_^
+   |
+   = note: added definition (technically breaking)
+