Where is MethodMatchResult used?

[qnighy]

I was looking for method resolution code in the compiler and found relevant-looking enum named MethodMatchResult. However, it seems to be used nowhere.

Is it used somewhere in the compiler, or is it just left unused?

Current behavior

MethodMatchResult seems to be unused.

Expected behavior

If it is unused, perhaps it should be removed then.

Meta

Grepped in Rust 1.16.0 compiler