bytecodealliance · alexcrichton · Apr 16, 2026
@@ -34,9 +34,6 @@ fn merging() -> Result<()> {
         from.assert_valid();
         into.assert_valid();
 
-        let from_clone = from.clone();
-        let into_clone = into.clone();
-
         match into.merge(from) {
             Ok(_) => {
                 assert!(
@@ -54,13 +51,6 @@ fn merging() -> Result<()> {
                     let output = printer.output.to_string();
                     assert_output(&expected, &output)?;
                 }
-
-                // Also assert merging in the reverse direction succeeds.
-                let mut reverse = from_clone;
-                reverse
-                    .merge(into_clone)
-                    .context("merge succeeded in one direction but failed in reverse")?;
-                reverse.assert_valid();
             }
             Err(e) => {
                 assert!(test_case.starts_with("bad-"), "failed to merge with {e:?}");

@@ -0,0 +1 @@
+failed to merge package `foo:foo` into existing copy: failed to merge interface `a`: expected type `a` to be present
@@ -0,0 +1 @@
+failed to merge package `foo:foo` into existing copy: failed to merge interface `a`: expected function `a` to be present
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		failed to merge package `foo:foo` into existing copy: failed to merge interface `a`: expected type `a` to be present