Bug 575823 - Let Display.syncCall() return a value

Reduce the boiler code in the callers of syncExec.

Change-Id: Ife69dc6ba2a6480c306efeacda864153a02418f7
Signed-off-by: Joerg Kubitz <jkubitz-eclipse@gmx.de>
Reviewed-on: https://git.eclipse.org/r/c/platform/eclipse.platform.swt/+/185385
Tested-by: Platform Bot <platform-bot@eclipse.org>
Reviewed-by: Alexander Fedorov <alexander.fedorov@arsysop.ru>
8 files changed
tree: ede0c1fdd804a6e086a5712c2ebbd71e3cb9e0b0
  1. bundles/
  2. container/
  3. examples/
  4. features/
  5. local-build/
  6. tests/
  7. .gitignore
  8. CONTRIBUTING
  9. Jenkinsfile
  10. LICENSE
  11. NOTICE
  12. pom.xml
  13. README.md
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