[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
diff --git a/clang-tools-extra/clang-tidy/misc/MoveConstructorInitCheck.cpp b/clang-tools-extra/clang-tidy/misc/MoveConstructorInitCheck.cpp
index eeebcf6..0072c0c 100644
--- a/clang-tools-extra/clang-tidy/misc/MoveConstructorInitCheck.cpp
+++ b/clang-tools-extra/clang-tidy/misc/MoveConstructorInitCheck.cpp
@@ -19,6 +19,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 namespace {
 
@@ -175,5 +176,6 @@
   Options.store(Opts, "IncludeStyle", IncludeSorter::toString(IncludeStyle));
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang