Index: tools/c-index-test/c-index-test.c
===================================================================
--- tools/c-index-test/c-index-test.c
+++ tools/c-index-test/c-index-test.c
@@ -1128,6 +1128,13 @@
   }
 }
 
+static CXString createCXString(const char *CS) {
+  CXString Str;
+  Str.data = (const void *) CS;
+  Str.private_flags = 0;
+  return Str;
+}
+
 /******************************************************************************/
 /* Callbacks.                                                                 */
 /******************************************************************************/
@@ -3090,7 +3097,7 @@
   int first_check_printed;
   int fail_for_error;
   int abort;
-  const char *main_filename;
+  CXString main_filename;
   ImportedASTFilesData *importedASTs;
   IndexDataStringList *strings;
   CXTranslationUnit TU;
@@ -3129,6 +3136,7 @@
   const char *cname;
   CXIdxClientFile file;
   unsigned line, column;
+  const char *main_filename;
   int isMainFile;
   
   index_data = (IndexData *)client_data;
@@ -3143,7 +3151,8 @@
   }
   filename = clang_getFileName((CXFile)file);
   cname = clang_getCString(filename);
-  if (strcmp(cname, index_data->main_filename) == 0)
+  main_filename = clang_getCString(index_data->main_filename);
+  if (strcmp(cname, main_filename) == 0)
     isMainFile = 1;
   else
     isMainFile = 0;
@@ -3345,14 +3354,11 @@
 static CXIdxClientFile index_enteredMainFile(CXClientData client_data,
                                        CXFile file, void *reserved) {
   IndexData *index_data;
-  CXString filename;
 
   index_data = (IndexData *)client_data;
   printCheck(index_data);
 
-  filename = clang_getFileName(file);
-  index_data->main_filename = clang_getCString(filename);
-  clang_disposeString(filename);
+  index_data->main_filename = clang_getFileName(file);
 
   printf("[enteredMainFile]: ");
   printCXIndexFile((CXIdxClientFile)file);
@@ -3591,7 +3597,7 @@
   index_data.first_check_printed = 0;
   index_data.fail_for_error = 0;
   index_data.abort = 0;
-  index_data.main_filename = "";
+  index_data.main_filename = createCXString("");
   index_data.importedASTs = importedASTs;
   index_data.strings = NULL;
   index_data.TU = NULL;
@@ -3607,6 +3613,7 @@
   if (index_data.fail_for_error)
     result = -1;
 
+  clang_disposeString(index_data.main_filename);
   free_client_data(&index_data);
   return result;
 }
@@ -3628,7 +3635,7 @@
   index_data.first_check_printed = 0;
   index_data.fail_for_error = 0;
   index_data.abort = 0;
-  index_data.main_filename = "";
+  index_data.main_filename = createCXString("");
   index_data.importedASTs = importedASTs;
   index_data.strings = NULL;
   index_data.TU = TU;
@@ -3641,6 +3648,7 @@
     result = -1;
 
   clang_disposeTranslationUnit(TU);
+  clang_disposeString(index_data.main_filename);
   free_client_data(&index_data);
   return result;
 }
@@ -4133,9 +4141,7 @@
           if (!isUSR(I[2]))
             return not_usr("<class USR>", I[2]);
           else {
-            CXString x;
-            x.data = (void*) I[2];
-            x.private_flags = 0;
+            CXString x = createCXString(I[2]);
             print_usr(clang_constructUSR_ObjCIvar(I[1], x));
           }
 
@@ -4160,9 +4166,7 @@
           if (!isUSR(I[3]))
             return not_usr("<class USR>", I[3]);
           else {
-            CXString x;
-            x.data = (void*) I[3];
-            x.private_flags = 0;
+            CXString x = createCXString(I[3]);
             print_usr(clang_constructUSR_ObjCMethod(I[1], atoi(I[2]), x));
           }
           I += 4;
@@ -4190,9 +4194,7 @@
           if (!isUSR(I[2]))
             return not_usr("<class USR>", I[2]);
           else {
-            CXString x;
-            x.data = (void*) I[2];
-            x.private_flags = 0;
+            CXString x = createCXString(I[2]);
             print_usr(clang_constructUSR_ObjCProperty(I[1], x));
           }
           I += 3;