gccrs: fix ICE by skipping invalid (non-FNDEF) candidates - #4078
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gcc/rust/ChangeLog: * typecheck/rust-hir-dot-operator.cc (MethodResolver::Select): Skip asserts by checking candidate type and using early-continue. (MethodResolver::try_select_predicate_candidates): Skip invalid candidates. gcc/testsuite/ChangeLog: * rust/compile/issue-3958.rs: New test. Signed-off-by: lishin <lishin1008@gmail.com>
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Fixes #3958
gcc/rust/ChangeLog:
gcc/testsuite/ChangeLog: