A bundle of default method fixes and related changes #7471
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…hods. This is done by adding a new notion of "vtable_self". We do not yet properly handle super traits. Closes rust-lang#7183.
…tions for each param.
This is work on rust-lang#7460. It does not properly handle certain cross crate situations, because we don't properly export vtable resolution information.
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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.)
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Fix ICE in redundant_pattern_matching Fixes rust-lang#7410 changelog: Fix ICE in `redundant_pattern_matching` in `no_std` crates.
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Rustup r? `@ghost` Out of cycle sync for 2 ICE fixes rust-lang#7470 rust-lang#7471 rust-lang#7473 changelog: none
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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.)