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Rollup merge of #86726 - sexxi-goose:use-diagnostic-item-for-rfc2229-migration, r=nikomatsakis

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Use diagnostic items instead of lang items for rfc2229 migrations

This PR removes the `Send`, `UnwindSafe` and `RefUnwindSafe` lang items introduced in https://github.com/rust-lang/rust/pull/84730, and uses diagnostic items instead to check for `Send`, `UnwindSafe` and `RefUnwindSafe` traits for RFC2229 migrations.

r? ```@nikomatsakis```
This commit is contained in:
Guillaume Gomez 2021-07-08 18:30:33 +02:00 • committed by GitHub
commit d12b16887b
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7 changed files with 14 additions and 20 deletions
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5
compiler/rustc_span/src/symbol.rs
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@ -947,7 +947,7 @@ symbols! {
receiver,
recursion_limit,
reexport_test_harness_main,
ref_unwind_safe,
ref_unwind_safe_trait,
reference,
reflect,
reg,
@ -1073,7 +1073,6 @@ symbols! {
self_in_typedefs,
self_struct_ctor,
semitransparent,
send,
send_trait,
shl,
shl_assign,
@ -1299,7 +1298,7 @@ symbols! {
unused_qualifications,
unwind,
unwind_attributes,
unwind_safe,
unwind_safe_trait,
unwrap,
unwrap_or,
use_extern_macros,