Merge pull request #34576 from CodaFi/beta-blockers

[DNM] Workaround For More Modtimes Bugs

Author: CodaFi

test/Incremental/CrossModule/external-cascade.swift

@@ -29,6 +29,7 @@
 // RUN: touch %t/another-header.h
 // RUN: cd %t && %target-swiftc_driver -c -incremental -emit-dependencies -emit-module -emit-module-path %t/C.swiftmodule -enable-experimental-cross-module-incremental-build -module-name C -I %t -output-file-map %t/C.json -working-directory %t -import-objc-header %t/bridging-header.h -Xfrontend -validate-tbd-against-ir=none -driver-show-incremental -driver-show-job-lifecycle C.swift 2>&1 | %FileCheck -check-prefix MODULE-C %s
 // RUN: cd %t && %target-swiftc_driver -c -incremental -emit-dependencies -emit-module -emit-module-path %t/B.swiftmodule -enable-experimental-cross-module-incremental-build -module-name B -I %t -output-file-map %t/B.json -working-directory %t -driver-show-incremental -driver-show-job-lifecycle B.swift 2>&1 | %FileCheck -check-prefix MODULE-B %s
+// RUN: touch %t/B.swiftmodule
 // RUN: cd %t && %target-swiftc_driver -c -incremental -emit-dependencies -emit-module -emit-module-path %t/A.swiftmodule -enable-experimental-cross-module-incremental-build -module-name A -I %t -output-file-map %t/A.json -working-directory %t -driver-show-incremental -driver-show-job-lifecycle A.swift 2>&1 | %FileCheck -check-prefix MODULE-A %s
 
 // MODULE-C: Job finished: {generate-pch: bridging-header-[[BRIDGING_HEADER:.*]].pch <= bridging-header.h}