mozilla/rust — pull request #7471 by msullivan (2013-06-29 00:51:39+00:00)
Title: A bundle of default method fixes and related changes

This fixes a bunch of default method bugs and restructures how vtable resolutions are represented.

(It also adds a depth counter to llvm::type_to_str as a hacky work around for our circular llvm types. This is related in the sense that I needed to do it to make debug tracing not cause rustc to crash after running out of stack space.)