Let clang-check actually use the Directory entry in the json file.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131367 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/examples/Tooling/ClangCheck.cpp b/examples/Tooling/ClangCheck.cpp
index 0dfa53d..db24ec3 100644
--- a/examples/Tooling/ClangCheck.cpp
+++ b/examples/Tooling/ClangCheck.cpp
@@ -93,6 +93,12 @@
         clang::tooling::FindCompileArgsInJsonDatabase(
             File.str(), JsonDatabase->getBuffer(), ErrorMessage);
     if (!LookupResult.CommandLine.empty()) {
+      if (LookupResult.Directory.size()) {
+        // FIXME: What should happen if CommandLine includes -working-directory
+        // as well?
+        LookupResult.CommandLine.push_back(
+            "-working-directory=" + LookupResult.Directory);
+      }
       if (!clang::tooling::RunToolWithFlags(
                new clang::SyntaxOnlyAction,
                LookupResult.CommandLine.size(),
diff --git a/lib/Tooling/JsonCompileCommandLineDatabase.h b/lib/Tooling/JsonCompileCommandLineDatabase.h
index 9e776d6..ea7cf0e 100644
--- a/lib/Tooling/JsonCompileCommandLineDatabase.h
+++ b/lib/Tooling/JsonCompileCommandLineDatabase.h
@@ -78,7 +78,7 @@
                                CompileCommandHandler *CommandHandler);
 
   /// \brief Parses the specified input. Returns true if no parsing errors were
-  /// foudn.
+  /// found.
   bool Parse();
 
   /// \brief Returns an error message if Parse() returned false previously.