1 files changed, 15 insertions, 5 deletions

diff --git a/contrib/llvm/tools/clang/lib/Basic/Module.cpp b/contrib/llvm/tools/clang/lib/Basic/Module.cpp
index 4314b41eb340..0b7832636943 100644
--- a/contrib/llvm/tools/clang/lib/Basic/Module.cpp
+++ b/contrib/llvm/tools/clang/lib/Basic/Module.cpp
@@ -28,11 +28,12 @@ Module::Module(StringRef Name, SourceLocation DefinitionLoc, Module *Parent,
                bool IsFramework, bool IsExplicit, unsigned VisibilityID)
     : Name(Name), DefinitionLoc(DefinitionLoc), Parent(Parent), Directory(),
       Umbrella(), Signature(0), ASTFile(nullptr), VisibilityID(VisibilityID),
-      IsMissingRequirement(false), IsAvailable(true), IsFromModuleFile(false),
-      IsFramework(IsFramework), IsExplicit(IsExplicit), IsSystem(false),
-      IsExternC(false), IsInferred(false), InferSubmodules(false),
-      InferExplicitSubmodules(false), InferExportWildcard(false),
-      ConfigMacrosExhaustive(false), NameVisibility(Hidden) {
+      IsMissingRequirement(false), HasIncompatibleModuleFile(false),
+      IsAvailable(true), IsFromModuleFile(false), IsFramework(IsFramework),
+      IsExplicit(IsExplicit), IsSystem(false), IsExternC(false),
+      IsInferred(false), InferSubmodules(false), InferExplicitSubmodules(false),
+      InferExportWildcard(false), ConfigMacrosExhaustive(false),
+      NameVisibility(Hidden) {
   if (Parent) {
     if (!Parent->isAvailable())
       IsAvailable = false;
@@ -139,6 +140,15 @@ std::string Module::getFullModuleName() const {
   return Result;
 }
 
+bool Module::fullModuleNameIs(ArrayRef<StringRef> nameParts) const {
+  for (const Module *M = this; M; M = M->Parent) {
+    if (nameParts.empty() || M->Name != nameParts.back())
+      return false;
+    nameParts = nameParts.drop_back();
+  }
+  return nameParts.empty();
+}
+
 Module::DirectoryName Module::getUmbrellaDir() const {
   if (Header U = getUmbrellaHeader())
     return {"", U.Entry->getDir()};