tree e71a53791750551c4452510b44271c1d2e17babe
parent aeb32f01b674e383d240b3a173d6d9bc29c7a6ad
parent 2a774b1e6bfda649f75dcc6d32502100f8420a3a
author Mazdak Farrokhzad <twingoow@gmail.com> 1568682516 +0200
committer GitHub <noreply@github.com> 1568682516 +0200
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Rollup merge of #64416 - mark-i-m:region-naming-ctx, r=estebank

Various refactorings to clean up nll diagnostics

- Create ErrorReportingCtx and ErrorConstraintInfo, vasting reducing the
  number of arguments passed around everywhere in the error reporting code
- Create RegionErrorNamingCtx, making a given lifetime have consistent
  numbering thoughout all error messages for that MIR def.
- Make the error reporting code return the DiagnosticBuilder rather than
  directly buffer the Diagnostic. This makes it easier to modify the
  diagnostic later, e.g. to add suggestions.

r? @estebank

Split out from https://github.com/rust-lang/rust/pull/58281