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span: move MultiSpan

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`MultiSpan` contains labels, which are more complicated with the
introduction of diagnostic translation and will use types from
`rustc_errors` - however, `rustc_errors` depends on `rustc_span` so
`rustc_span` cannot use types like `DiagnosticMessage` without
dependency cycles. Introduce a new `rustc_error_messages` crate that can
contain `DiagnosticMessage` and `MultiSpan`.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood
2022-03-24 02:03:04 +00:00
parent 8c684563a5
commit c45f29595d
66 changed files with 354 additions and 293 deletions
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4
compiler/rustc_middle/src/ty/error.rs
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@@ -3,11 +3,11 @@ use crate::ty::diagnostics::suggest_constraining_type_param;
use crate::ty::print::{FmtPrinter, Printer};
use crate::ty::{self, BoundRegionKind, Region, Ty, TyCtxt};
use rustc_errors::Applicability::{MachineApplicable, MaybeIncorrect};
use rustc_errors::{pluralize, Diagnostic};
use rustc_errors::{pluralize, Diagnostic, MultiSpan};
use rustc_hir as hir;
use rustc_hir::def_id::DefId;
use rustc_span::symbol::{sym, Symbol};
use rustc_span::{BytePos, MultiSpan, Span};
use rustc_span::{BytePos, Span};
use rustc_target::spec::abi;
use std::borrow::Cow;