Convert clang_getCompletionChunkText() to return a CXString.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96439 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/c-index-test/c-index-test.c b/tools/c-index-test/c-index-test.c
index 360f75a..640375a 100644
--- a/tools/c-index-test/c-index-test.c
+++ b/tools/c-index-test/c-index-test.c
@@ -755,7 +755,8 @@
 
   N = clang_getNumCompletionChunks(completion_string);
   for (I = 0; I != N; ++I) {
-    const char *text = 0;
+    CXString text;
+    const char *cstr;
     enum CXCompletionChunkKind Kind
       = clang_getCompletionChunkKind(completion_string, I);
 
@@ -769,10 +770,13 @@
     }
 
     text = clang_getCompletionChunkText(completion_string, I);
+    cstr = clang_getCString(text);
     fprintf(file, "{%s %s}",
             clang_getCompletionChunkKindSpelling(Kind),
-            text? text : "");
+            cstr ? cstr : "");
+    clang_disposeString(text);
   }
+
 }
 
 void print_completion_result(CXCompletionResult *completion_result,