Use wilcard import in unit tests

We can import types to test in unit tests using `use super::*`.

Author: tcharding

src/descriptor/key.rs

@@ -1153,10 +1153,7 @@ mod test {
     #[cfg(feature = "serde")]
     use serde_test::{assert_tokens, Token};
 
-    use super::{
-        DescriptorKeyParseError, DescriptorMultiXKey, DescriptorPublicKey, DescriptorSecretKey,
-        MiniscriptKey, Wildcard,
-    };
+    use super::*;
     use crate::prelude::*;
 
     #[test]

src/expression.rs

@@ -260,7 +260,7 @@ where
 #[cfg(test)]
 mod tests {
 
-    use super::parse_num;
+    use super::*;
 
     #[test]
     fn test_parse_num() {

src/miniscript/mod.rs

@@ -606,7 +606,7 @@ mod tests {
     use bitcoin::{self, secp256k1, Sequence};
     use sync::Arc;
 
-    use super::{Miniscript, ScriptContext, Segwitv0, Tap};
+    use super::*;
     use crate::miniscript::types::{self, ExtData, Property, Type};
     use crate::miniscript::Terminal;
     use crate::policy::Liftable;

src/policy/mod.rs

@@ -226,10 +226,8 @@ mod tests {
     #[cfg(feature = "compiler")]
     use sync::Arc;
 
-    use super::super::miniscript::context::Segwitv0;
-    use super::super::miniscript::Miniscript;
-    use super::{Concrete, Liftable, Semantic};
-    #[cfg(feature = "compiler")]
+    use super::*;
+1    #[cfg(feature = "compiler")]
     use crate::descriptor::Tr;
     use crate::prelude::*;
     #[cfg(feature = "compiler")]