[libclang] Avoid copying the CompileCommand related strings when wrapping them to a CXString.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169227 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCompilationDatabase.cpp b/tools/libclang/CXCompilationDatabase.cpp
index 8567d31..7216307 100644
--- a/tools/libclang/CXCompilationDatabase.cpp
+++ b/tools/libclang/CXCompilationDatabase.cpp
@@ -110,7 +110,7 @@
     return createCXString((const char*)NULL);
 
   CompileCommand *cmd = static_cast<CompileCommand *>(CCmd);
-  return createCXString(cmd->Directory);
+  return createCXString(cmd->Directory.c_str(), /*DupString=*/false);
 }
 
 unsigned
@@ -133,7 +133,7 @@
   if (Arg >= Cmd->CommandLine.size())
     return createCXString((const char*)NULL);
 
-  return createCXString(Cmd->CommandLine[Arg]);
+  return createCXString(Cmd->CommandLine[Arg].c_str(), /*DupString=*/false);
 }