Added 4654 test case

Author: vallentin

tests/source/issue-4654.rs

@@ -0,0 +1,36 @@
+struct Foo {
+    bar: ()
+        // Comment
+}
+
+struct Bar {
+    baz: ()
+/*
+Comment
+*/
+}
+
+struct Baz(
+    ()
+        // Comment
+);
+
+fn main() {
+    let _ = Foo {
+        bar: ()
+                // Comment
+    };
+
+    let _ = Bar {
+        baz: ()
+    /*
+    Comment
+    */
+    };
+
+    let _ = Baz(
+        ()
+
+            // Comment
+    );
+}

tests/target/issue-4654.rs

@@ -0,0 +1,35 @@
+struct Foo {
+    bar: (),
+    // Comment
+}
+
+struct Bar {
+    baz: (),
+    /*
+    Comment
+    */
+}
+
+struct Baz(
+    (),
+    // Comment
+);
+
+fn main() {
+    let _ = Foo {
+        bar: (),
+        // Comment
+    };
+
+    let _ = Bar {
+        baz: (),
+        /*
+        Comment
+        */
+    };
+
+    let _ = Baz(
+        (),
+        // Comment
+    );
+}