Update DependencyScanning{Service/Worker}

Author: jansvoboda11

clang/include/clang/Tooling/DependencyScanning/DependencyScanningService.h

@@ -12,7 +12,6 @@
 #include "clang/Tooling/DependencyScanning/DependencyScanningFilesystem.h"
 #include "clang/Tooling/DependencyScanning/InProcessModuleCache.h"
 #include "llvm/ADT/BitmaskEnum.h"
-#include "llvm/Support/Chrono.h"
 
 namespace clang {
 namespace tooling {
@@ -85,9 +84,7 @@ class DependencyScanningService {
   DependencyScanningService(
       ScanningMode Mode, ScanningOutputFormat Format,
       ScanningOptimizations OptimizeArgs = ScanningOptimizations::Default,
-      bool EagerLoadModules = false, bool TraceVFS = false,
-      std::time_t BuildSessionTimestamp =
-          llvm::sys::toTimeT(std::chrono::system_clock::now()));
+      bool EagerLoadModules = false, bool TraceVFS = false);
 
   ScanningMode getMode() const { return Mode; }
 
@@ -105,8 +102,6 @@ class DependencyScanningService {
 
   ModuleCacheEntries &getModuleCacheEntries() { return ModCacheEntries; }
 
-  std::time_t getBuildSessionTimestamp() const { return BuildSessionTimestamp; }
-
 private:
   const ScanningMode Mode;
   const ScanningOutputFormat Format;
@@ -120,8 +115,6 @@ class DependencyScanningService {
   DependencyScanningFilesystemSharedCache SharedCache;
   /// The global module cache entries.
   ModuleCacheEntries ModCacheEntries;
-  /// The build session timestamp.
-  std::time_t BuildSessionTimestamp;
 };
 
 } // end namespace dependencies

clang/lib/Tooling/DependencyScanning/DependencyScanningService.cpp

@@ -14,8 +14,6 @@ using namespace dependencies;
 
 DependencyScanningService::DependencyScanningService(
     ScanningMode Mode, ScanningOutputFormat Format,
-    ScanningOptimizations OptimizeArgs, bool EagerLoadModules, bool TraceVFS,
-    std::time_t BuildSessionTimestamp)
+    ScanningOptimizations OptimizeArgs, bool EagerLoadModules, bool TraceVFS)
     : Mode(Mode), Format(Format), OptimizeArgs(OptimizeArgs),
-      EagerLoadModules(EagerLoadModules), TraceVFS(TraceVFS),
-      BuildSessionTimestamp(BuildSessionTimestamp) {}
+      EagerLoadModules(EagerLoadModules), TraceVFS(TraceVFS) {}

clang/lib/Tooling/DependencyScanning/DependencyScanningWorker.cpp

@@ -428,10 +428,6 @@ class DependencyScanningAction : public tooling::ToolAction {
     ScanInstance.getPreprocessorOpts().AllowPCHWithDifferentModulesCachePath =
         true;
 
-    if (ScanInstance.getHeaderSearchOpts().ModulesValidateOncePerBuildSession)
-      ScanInstance.getHeaderSearchOpts().BuildSessionTimestamp =
-          Service.getBuildSessionTimestamp();
-
     ScanInstance.getFrontendOpts().GenerateGlobalModuleIndex = false;
     ScanInstance.getFrontendOpts().UseGlobalModuleIndex = false;
     // This will prevent us compiling individual modules asynchronously since