add test

Author: rchaser53

tests/source/issue-3933/imp-a.rs

@@ -0,0 +1,3 @@
+  mod utils;
+pub 
+  struct A;

tests/source/issue-3933/imp-b.rs

@@ -0,0 +1 @@
+pub struct B;

tests/source/issue-3933/lib.rs

@@ -0,0 +1,4 @@
+#[cfg_attr(windows, path = "imp-a.rs" )]
+  #[cfg_attr(not(windows), path = "imp-b.rs")]
+mod   imp;
+  pub use imp::A;

tests/source/issue-3933/utils.rs

@@ -0,0 +1,4 @@
+  pub fn fuga() {
+
+
+}

tests/target/issue-3933/imp-a.rs

@@ -0,0 +1,2 @@
+mod utils;
+pub struct A;

tests/target/issue-3933/imp-b.rs

@@ -0,0 +1 @@
+pub struct B;

tests/target/issue-3933/lib.rs

@@ -0,0 +1,4 @@
+#[cfg_attr(windows, path = "imp-a.rs")]
+#[cfg_attr(not(windows), path = "imp-b.rs")]
+mod imp;
+pub use imp::A;

tests/target/issue-3933/utils.rs

@@ -0,0 +1 @@
+pub fn fuga() {}