[nongnu] elpa/swift-mode updated (800efe2 -> 4ec7c73)

[ELPA Syncer]

elpasync pushed a change to branch elpa/swift-mode.

      from  800efe2   Fix tags of customization
       new  05a661e   Add test for SE-0310 Effectful Read-only Properties
       new  9e220cb   Support nonisolated/isolated
       new  53e6a8c   Support SE-0317 async let
       new  4ec7c73   Bump version to 8.4.0


Summary of changes:
 swift-mode-font-lock.el                    |  2 +-
 swift-mode-lexer.el                        | 34 ++++++++++++++++++++++++++----
 swift-mode.el                              |  2 +-
 test/swift-files/indent/declarations.swift | 22 +++++++++++++++++--
 test/swift-files/indent/identifiers.swift  |  6 ++++++
 5 files changed, 58 insertions(+), 8 deletions(-)