Add “-swift-version X” to %target-swift-ide-test substitution.

Author: tkremenek

test/lit.cfg

@@ -1019,10 +1019,11 @@ config.substitutions.append(('%target-sil-llvm-gen', config.target_sil_llvm_gen)
 config.substitutions.append(('%target-sil-nm', config.target_sil_nm))
 config.substitutions.append(
     ('%target-swift-ide-test\(mock-sdk:([^)]+)\)',
-     '%s \\1 %s' %
+     '%s \\1 %s -swift-version %s' %
      (subst_target_swift_ide_test_mock_sdk,
-      subst_target_swift_ide_test_mock_sdk_after)))
-config.substitutions.append(('%target-swift-ide-test', config.target_swift_ide_test))
+      subst_target_swift_ide_test_mock_sdk_after,
+      swift_version)))
+config.substitutions.append(('%target-swift-ide-test', "%s -swift-version %s" % (config.target_swift_ide_test, swift_version)))
 config.substitutions.append(('%target-swift-reflection-test', lit.util.which('swift-reflection-test{variant_suffix}'.format(variant_suffix=config.variant_suffix), config.environment['PATH'])))
 config.substitutions.append(('%target-swift-reflection-dump', '{} {} {}'.format(config.swift_reflection_dump, '-arch', run_cpu)))
 config.substitutions.append(('%target-swiftc_driver', config.target_swiftc_driver))