Fix swift driver hanging on SIGINT by adding timeout forced exit #1998
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When users interrupt swift driver with ctrl+c, the llbuild engine.build() call can hang indefinitely even after child processes are terminated. Add a two second timeout to force exit if graceful termination fails. Resolves swiftlang#1798
| @swift-ci please test |
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When users interrupt swift driver with ctrl+c, the llbuild engine.build() call can hang indefinitely even after child processes are terminated. Add a two second timeout to force exit if graceful termination fails.
Resolves #1798