Merge pull request #3156 from apple/compnerd/bump

Update CMakeLists.txt

Author: compnerd

Tests/Foundation/CMakeLists.txt

@@ -185,7 +185,7 @@ xctest_discover_tests(TestFoundation
                       WORKING_DIRECTORY
                         ${CMAKE_BINARY_DIR}/TestFoundation.app
                       DISCOVERY_TIMEOUT
-                        10
+                        30
                       PROPERTIES
                         ENVIRONMENT
                           LD_LIBRARY_PATH=${CMAKE_BINARY_DIR}/TestFoundation.app:$<TARGET_LINKER_FILE_DIR:XCTest>:$<TARGET_LINKER_FILE_DIR:dispatch>:$<TARGET_LINKER_FILE_DIR:swiftDispatch>:$<TARGET_LINKER_FILE_DIR:BlocksRuntime>)