gccrs: fix ICE in TyVar constructor #4204
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gcc/rust/ChangeLog: * typecheck/rust-tyty-util.cc (TyVar::TyVar): (TyVar::get_tyty): (TyVar::clone): (TyVar::monomorphized_clone): gcc/testsuite/ChangeLog: * rust/compile/issue-3556.rs: New test. Signed-off-by: lishin <[email protected]>
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fix #3556
The changes ensure that type lookup failures no longer trigger assertions and instead safely return implicit inference variables.
If further support for this pattern is needed, I'm happy to discuss possible approaches further!
gcc/rust/ChangeLog:
gcc/testsuite/ChangeLog: