Don't skip the separate compile jobs (until other tools are updated)

Author: xymus

Sources/SwiftDriver/Jobs/Planning.swift

@@ -404,7 +404,11 @@ extension Driver {
       }
       assert(backendJobs.count <= 1)
       addCompileJobGroup(CompileJobGroup(compileJob: compile, backendJob: backendJobs.first))
-    } else if !canSkipIfOnlyModule {
+    } else {
+      // TODO: if !canSkipIfOnlyModule {
+      // Some other tools still expect the partial jobs. Bring this check
+      // back once they are updated. rdar://84979778
+
       // We can skip the compile jobs if all we want is a module when it's
       // built separately.
       let compile = try compileJob(primaryInputs: [primaryInput],