Enable SourceKit tests if building SourceKit other than ubuntu 14.04

[norio-nomura]

• Continue from Enable SourceKit tests if building SourceKit #8485
• Disable sourcekit test on ubuntu 14.04 because of non-deterministic failures. Enable SourceKit tests if building SourceKit #8485 (comment)

Resolves SR-1676, SR-4490, SR-4491

[norio-nomura]

Updated test/lit.cfg:

• Add /usr/bin/lsb_release is executable
• Remove codename that never used
• Do not set LinuxDistribution=… if distributor or release is empty

Sorry, previous conversations are missing, since I did force push.

[alblue]

Looks good to me - let's see what happens with the tests, and if they pass, look at merging it in to trigger the 14.04 bots.
@swift-ci please smoke test

[alblue]

lit.py: /home/buildnode/disk2/workspace/swift-PR-Linux-smoke-test/branch-master/swift/test/lit.cfg:1102: note: Running tests on Ubuntu-16.04
lit.py: /home/buildnode/disk2/workspace/swift-PR-Linux-smoke-test/branch-master/swift/test/lit.cfg:1104: note: Available features: LinuxDistribution=Ubuntu-16.04, CODEGENERATOR=SystemZ, asan_runtime, SWIFT_VERSION=3, CODEGENERATOR=PowerPC, autolink-extract, swift_test_mode_optimize_none, swift_stdlib_no_asserts, swift_test_mode_optimize_none_x86_64, optimized_stdlib, no_lto, no_asan, tsan_runtime, lldb, CODEGENERATOR=X86, crash-recovery, CPU=x86_64, CODEGENERATOR=ARM, static_stdlib, CMAKE_GENERATOR=Ninja, optimized_stdlib_x86_64, swift-remoteast-test, nonexecutable_test, OS=linux-gnu, swift_interpreter, CODEGENERATOR=AArch64, CPU=i386_or_x86_64, ubsan_runtime, sourcekit, asserts, executable_test, PTRSIZE=64

Looks good :)

[norio-nomura]

Thanks! 😄

[alblue]

Seems to have done the trick; the 14.04 build succeeded with messages like:

UNSUPPORTED: Swift(linux-x86_64) :: SourceKit/SyntaxMapData/syntaxmap-edit.swift (7104 of 9697)
UNSUPPORTED: Swift(linux-x86_64) :: SourceKit/SyntaxMapData/syntaxmap.swift (7105 of 9697)
UNSUPPORTED: Swift(linux-x86_64) :: SourceKit/SyntaxMapData/syntaxmap-pound-keyword.swift (7106 of 9697)

The tests also ran correctly on the 16.04 bot:

PASS: Swift(linux-x86_64) :: SourceKit/SyntaxMapData/syntaxmap-pound-keyword.swift (7108 of 9697)
PASS: Swift(linux-x86_64) :: SourceKit/SyntaxMapData/syntaxmap-edit.swift (7113 of 9697)
PASS: Swift(linux-x86_64) :: SourceKit/SyntaxMapData/syntaxmap.swift (7114 of 9697)

However the 16.04 build failed with (what looks like) an unrelated issue:

Test Suite 'MiscellaneousTestCase' started at 06:53:47.979
Test Case 'MiscellaneousTestCase.testCanKillSubprocessOnSigInt' started at 06:53:47.979
/home/buildnode/jenkins/workspace/oss-swift-incremental-RA-linux-ubuntu-16_10/swiftpm/Tests/FunctionalTests/MiscellaneousTests.swift:465: error: MiscellaneousTestCase.testCanKillSubprocessOnSigInt : failed - Couldn't launch the process
Test Case 'MiscellaneousTestCase.testCanKillSubprocessOnSigInt' failed (2.979 seconds)
Test Suite 'MiscellaneousTestCase' failed at 06:53:50.958
	 Executed 1 test, with 1 failure (0 unexpected) in 2.979 (2.979) seconds
Test Suite 'Selected tests' failed at 06:53:50.958
	 Executed 1 test, with 1 failure (0 unexpected) in 2.979 (2.979) seconds--- bootstrap: error: tests failed with exit status 1

We should not revert this pull request because of the above failure, since it's unrelated. Maybe a subsequent build will work as expected.

[alblue]

NB the OSX build failed as well:

ninja: error: '/Users/buildnode/jenkins/workspace/oss-swift-incremental-RA-osx/swift/stdlib/public/SDK/CoreMedia/swiftXPC-swiftmodule-iphonesimulator-i386', needed by 'stdlib/public/SDK/CoreMedia/iphonesimulator/i386/CoreMedia.o', missing and no known rule to make it

The smoke test builds on both Linux and Darwin succeeded without these errors, and this same error has been reported since build 9701 yesterday evening:

https://ci.swift.org/job/oss-swift-incremental-RA-osx/9701/consoleFull#57226989ee1a197b-acac-4b17-83cf-a53b95139a76