Merge commit '83ffe9cde7fe0b4deb0d1b54175fd9b19c38179c' into HEAD

Conflicts:
	gcc/rust/rust-gcc-diagnostics.cc
	gcc/rust/typecheck/rust-hir-trait-ref.h
	gcc/rust/typecheck/rust-hir-type-check-toplevel.cc
	gcc/rust/typecheck/rust-hir-type-check-toplevel.h
	gcc/rust/typecheck/rust-tyctx.cc
	gcc/rust/typecheck/rust-tyty-rules.h

Upstream GCC commit r13-5197-g83ffe9cde7fe0b4deb0d1b54175fd9b19c38179c
"Update copyright years" did updated those files that don't exist in
GCC/Rust master branch anymore.

diff --cc gcc/config/i386/t-i386
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diff --cc gcc/rust/hir/rust-ast-lower-base.cc
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diff --cc gcc/rust/hir/rust-ast-lower-type.h
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diff --cc gcc/rust/hir/rust-hir-dump.cc
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diff --cc gcc/rust/hir/tree/rust-hir-expr.h
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diff --cc gcc/rust/hir/tree/rust-hir-full-decls.h
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diff --cc gcc/rust/hir/tree/rust-hir-full-test.cc
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diff --cc gcc/rust/lang.opt
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diff --cc gcc/rust/resolve/rust-ast-resolve-expr.cc
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diff --cc gcc/rust/resolve/rust-ast-resolve-item.cc
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diff --cc gcc/rust/resolve/rust-ast-resolve-pattern.h
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diff --cc gcc/rust/resolve/rust-ast-resolve-stmt.h
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diff --cc gcc/rust/resolve/rust-ast-resolve-toplevel.h
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diff --cc gcc/rust/resolve/rust-ast-resolve-type.cc
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diff --cc gcc/rust/resolve/rust-ast-verify-assignee.h
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diff --cc gcc/rust/typecheck/rust-hir-inherent-impl-overlap.h
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diff --cc gcc/rust/typecheck/rust-hir-path-probe.h
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diff --cc gcc/rust/typecheck/rust-hir-trait-resolve.cc
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diff --cc gcc/rust/typecheck/rust-hir-trait-resolve.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-base.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-base.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-enumitem.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-expr.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-expr.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-implitem.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-implitem.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-item.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-item.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-path.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-pattern.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-pattern.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-stmt.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-stmt.h
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diff --cc gcc/rust/typecheck/rust-hir-type-check-struct.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check-type.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check.cc
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diff --cc gcc/rust/typecheck/rust-hir-type-check.h
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diff --cc gcc/rust/typecheck/rust-substitution-mapper.cc
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diff --cc gcc/rust/typecheck/rust-substitution-mapper.h
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diff --cc gcc/rust/typecheck/rust-tyty-bounds.cc
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diff --cc gcc/rust/typecheck/rust-tyty-call.cc
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diff --cc gcc/rust/typecheck/rust-tyty-call.h
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diff --cc gcc/rust/typecheck/rust-tyty-cmp.h
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diff --cc gcc/rust/typecheck/rust-tyty.cc
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diff --cc gcc/rust/typecheck/rust-tyty.h
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diff --cc gcc/rust/util/rust-attributes.cc
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diff --cc gcc/rust/util/rust-buffered-queue.h
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diff --cc gcc/rust/util/rust-hir-map.cc
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diff --cc gcc/rust/util/rust-lang-item.h
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diff --cc gcc/rust/util/rust-make-unique.h
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diff --cc gcc/rust/util/rust-operators.h
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diff --cc gcc/rust/util/rust-optional.h
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diff --cc gcc/testsuite/lib/rust.exp
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