add more namepsaces in tests

Author: usx95

clang/include/clang/Basic/AttrDocs.td

@@ -3922,8 +3922,8 @@ def LifetimeCaptureByDocs : Documentation {
   let Category = DocCatFunction;
   let Content = [{
     Similar to `lifetimebound`_, the ``lifetime_capture_by(X)`` attribute on a function
-parameter or implicit object parameter indicates that objects that are referred to by
-that parameter may also be referred to by a capturing entity ``X``.
+parameter or implicit object parameter indicates that indicates that the capturing entity
+``X`` may refer to the object referred by that parameter.
 
 Below is a list of types of the parameters and what they're considered to refer to:
 

clang/test/Sema/Inputs/lifetime-analysis.h

@@ -135,4 +135,4 @@ struct true_type {
 template<class T> struct is_pointer : false_type {};
 template<class T> struct is_pointer<T*> : true_type {};
 template<class T> struct is_pointer<T* const> : true_type {};
-}
+}