[clang-tidy] Cleaning namespaces to be more consistant across checkers.

Summary:
The goal of the patch is to bring checkers in their appropriate namespace.
This path doesn't change any behavior.

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19811

llvm-svn: 268264

1 files changed, 2 insertions, 2 deletions

diff --git a/clang-tools-extra/clang-tidy/performance/ForRangeCopyCheck.cpp b/clang-tools-extra/clang-tidy/performance/ForRangeCopyCheck.cpp
index abdcdf49e86..7fc9437328b 100644
--- a/clang-tools-extra/clang-tidy/performance/ForRangeCopyCheck.cpp
+++ b/clang-tools-extra/clang-tidy/performance/ForRangeCopyCheck.cpp
@@ -12,12 +12,12 @@
 #include "../utils/FixItHintUtils.h"
 #include "../utils/TypeTraits.h"
 
+using namespace clang::ast_matchers;
+
 namespace clang {
 namespace tidy {
 namespace performance {
 
-using namespace ::clang::ast_matchers;
-
 ForRangeCopyCheck::ForRangeCopyCheck(StringRef Name, ClangTidyContext *Context)
     : ClangTidyCheck(Name, Context),
       WarnOnAllAutoCopies(Options.get("WarnOnAllAutoCopies", 0)) {}