Update Swift for r367864

(cherry picked from commit 63127c2)

Author: JDevlieghere

lib/ClangImporter/ClangImporter.cpp

@@ -1421,7 +1421,7 @@ std::string ClangImporter::getBridgingHeaderContents(StringRef headerPath,
   invocation->getFrontendOpts().DisableFree = false;
   invocation->getFrontendOpts().Inputs.clear();
   invocation->getFrontendOpts().Inputs.push_back(
-      clang::FrontendInputFile(headerPath, clang::InputKind::ObjC));
+      clang::FrontendInputFile(headerPath, clang::Language::ObjC));
 
   invocation->getPreprocessorOpts().resetNonModularOptions();
 
@@ -1479,7 +1479,7 @@ ClangImporter::emitBridgingPCH(StringRef headerPath,
   invocation->getFrontendOpts().DisableFree = false;
   invocation->getFrontendOpts().Inputs.clear();
   invocation->getFrontendOpts().Inputs.push_back(
-      clang::FrontendInputFile(headerPath, clang::InputKind::ObjC));
+      clang::FrontendInputFile(headerPath, clang::Language::ObjC));
   invocation->getFrontendOpts().OutputFile = outputPCHPath;
   invocation->getFrontendOpts().ProgramAction = clang::frontend::GeneratePCH;
   invocation->getPreprocessorOpts().resetNonModularOptions();