Index: clang-tidy/misc/ArgumentCommentCheck.h
===================================================================
--- clang-tidy/misc/ArgumentCommentCheck.h
+++ clang-tidy/misc/ArgumentCommentCheck.h
@@ -15,6 +15,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Checks that argument comments match parameter names.
 class ArgumentCommentCheck : public ClangTidyCheck {
@@ -36,6 +37,7 @@
                      llvm::ArrayRef<const Expr *> Args);
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/ArgumentCommentCheck.cpp
===================================================================
--- clang-tidy/misc/ArgumentCommentCheck.cpp
+++ clang-tidy/misc/ArgumentCommentCheck.cpp
@@ -17,6 +17,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 ArgumentCommentCheck::ArgumentCommentCheck(StringRef Name,
                                            ClangTidyContext *Context)
@@ -181,5 +182,6 @@
   }
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/AssignOperatorSignatureCheck.h
===================================================================
--- clang-tidy/misc/AssignOperatorSignatureCheck.h
+++ clang-tidy/misc/AssignOperatorSignatureCheck.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Finds declarations of assign operators with the wrong return and/or
 ///   argument types.
@@ -29,6 +30,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/AssignOperatorSignatureCheck.cpp
===================================================================
--- clang-tidy/misc/AssignOperatorSignatureCheck.cpp
+++ clang-tidy/misc/AssignOperatorSignatureCheck.cpp
@@ -15,6 +15,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 void AssignOperatorSignatureCheck::registerMatchers(
     ast_matchers::MatchFinder *Finder) {
@@ -63,5 +64,6 @@
   }
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/BoolPointerImplicitConversion.h
===================================================================
--- clang-tidy/misc/BoolPointerImplicitConversion.h
+++ clang-tidy/misc/BoolPointerImplicitConversion.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Checks for conditions based on implicit conversion from a bool
 /// pointer to bool e.g.
@@ -29,6 +30,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/BoolPointerImplicitConversion.cpp
===================================================================
--- clang-tidy/misc/BoolPointerImplicitConversion.cpp
+++ clang-tidy/misc/BoolPointerImplicitConversion.cpp
@@ -22,6 +22,7 @@
 } // namespace ast_matchers
 
 namespace tidy {
+namespace misc {
 
 void BoolPointerImplicitConversion::registerMatchers(MatchFinder *Finder) {
   // Look for ifs that have an implicit bool* to bool conversion in the
@@ -71,5 +72,6 @@
       << FixItHint::CreateInsertion(Var->getLocStart(), "*");
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/InaccurateEraseCheck.h
===================================================================
--- clang-tidy/misc/InaccurateEraseCheck.h
+++ clang-tidy/misc/InaccurateEraseCheck.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Checks for inaccurate use of \c erase() method.
 ///
@@ -30,6 +31,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/InaccurateEraseCheck.cpp
===================================================================
--- clang-tidy/misc/InaccurateEraseCheck.cpp
+++ clang-tidy/misc/InaccurateEraseCheck.cpp
@@ -16,6 +16,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 void InaccurateEraseCheck::registerMatchers(MatchFinder *Finder) {
   const auto CheckForEndCall = hasArgument(
@@ -60,5 +61,6 @@
       << Hint;
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/InefficientAlgorithmCheck.h
===================================================================
--- clang-tidy/misc/InefficientAlgorithmCheck.h
+++ clang-tidy/misc/InefficientAlgorithmCheck.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Warns on inefficient use of STL algorithms on associative containers.
 ///
@@ -28,6 +29,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/InefficientAlgorithmCheck.cpp
===================================================================
--- clang-tidy/misc/InefficientAlgorithmCheck.cpp
+++ clang-tidy/misc/InefficientAlgorithmCheck.cpp
@@ -16,6 +16,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 static bool areTypesCompatible(QualType Left, QualType Right) {
   if (const auto *LeftRefType = Left->getAs<ReferenceType>())
@@ -123,5 +124,6 @@
       << Hint;
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/MiscTidyModule.cpp
===================================================================
--- clang-tidy/misc/MiscTidyModule.cpp
+++ clang-tidy/misc/MiscTidyModule.cpp
@@ -23,6 +23,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 class MiscModule : public ClangTidyModule {
 public:
@@ -47,8 +48,10 @@
   }
 };
 
+} // namespace misc
+
 // Register the MiscTidyModule using this statically initialized variable.
-static ClangTidyModuleRegistry::Add<MiscModule>
+static ClangTidyModuleRegistry::Add<misc::MiscModule>
 X("misc-module", "Adds miscellaneous lint checks.");
 
 // This anchor is used to force the linker to link in the generated object file
Index: clang-tidy/misc/SwappedArgumentsCheck.h
===================================================================
--- clang-tidy/misc/SwappedArgumentsCheck.h
+++ clang-tidy/misc/SwappedArgumentsCheck.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Finds potentially swapped arguments by looking at implicit
 /// conversions.
@@ -25,8 +26,8 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_SWAPPED_ARGUMENTS_CHECK_H
-
Index: clang-tidy/misc/SwappedArgumentsCheck.cpp
===================================================================
--- clang-tidy/misc/SwappedArgumentsCheck.cpp
+++ clang-tidy/misc/SwappedArgumentsCheck.cpp
@@ -16,6 +16,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 void SwappedArgumentsCheck::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(callExpr().bind("call"), this);
@@ -121,5 +122,6 @@
   }
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/UndelegatedConstructor.h
===================================================================
--- clang-tidy/misc/UndelegatedConstructor.h
+++ clang-tidy/misc/UndelegatedConstructor.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Finds creation of temporary objects in constructors that look like a
 /// function call to another constructor of the same class. The user most likely
@@ -26,6 +27,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/UndelegatedConstructor.cpp
===================================================================
--- clang-tidy/misc/UndelegatedConstructor.cpp
+++ clang-tidy/misc/UndelegatedConstructor.cpp
@@ -46,6 +46,7 @@
 } // namespace ast_matchers
 
 namespace tidy {
+namespace misc {
 
 void UndelegatedConstructorCheck::registerMatchers(MatchFinder *Finder) {
   // We look for calls to constructors of the same type in constructors. To do
@@ -70,5 +71,6 @@
                          "A temporary object is created here instead");
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/UniqueptrResetRelease.h
===================================================================
--- clang-tidy/misc/UniqueptrResetRelease.h
+++ clang-tidy/misc/UniqueptrResetRelease.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Find and replace unique_ptr::reset(release()) with std::move
 ///
@@ -32,6 +33,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/UniqueptrResetRelease.cpp
===================================================================
--- clang-tidy/misc/UniqueptrResetRelease.cpp
+++ clang-tidy/misc/UniqueptrResetRelease.cpp
@@ -15,6 +15,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 void UniqueptrResetRelease::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(
@@ -62,5 +63,6 @@
           CharSourceRange::getTokenRange(ResetCall->getSourceRange()), NewText);
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/UnusedRAII.h
===================================================================
--- clang-tidy/misc/UnusedRAII.h
+++ clang-tidy/misc/UnusedRAII.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Finds temporaries that look like RAII objects.
 ///
@@ -43,6 +44,7 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
Index: clang-tidy/misc/UnusedRAII.cpp
===================================================================
--- clang-tidy/misc/UnusedRAII.cpp
+++ clang-tidy/misc/UnusedRAII.cpp
@@ -22,6 +22,7 @@
 } // namespace ast_matchers
 
 namespace tidy {
+namespace misc {
 
 void UnusedRAIICheck::registerMatchers(MatchFinder *Finder) {
   // Look for temporaries that are constructed in-place and immediately
@@ -79,5 +80,6 @@
       Replacement);
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/misc/UseOverride.h
===================================================================
--- clang-tidy/misc/UseOverride.h
+++ clang-tidy/misc/UseOverride.h
@@ -14,6 +14,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 /// \brief Use C++11's 'override' and remove 'virtual' where applicable.
 class UseOverride : public ClangTidyCheck {
@@ -24,8 +25,8 @@
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
 
 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_USE_OVERRIDE_H
-
Index: clang-tidy/misc/UseOverride.cpp
===================================================================
--- clang-tidy/misc/UseOverride.cpp
+++ clang-tidy/misc/UseOverride.cpp
@@ -16,6 +16,7 @@
 
 namespace clang {
 namespace tidy {
+namespace misc {
 
 void UseOverride::registerMatchers(MatchFinder *Finder) {
   Finder->addMatcher(methodDecl(isOverride()).bind("method"), this);
@@ -175,5 +176,6 @@
   }
 }
 
+} // namespace misc
 } // namespace tidy
 } // namespace clang
Index: unittests/clang-tidy/MiscModuleTest.cpp
===================================================================
--- unittests/clang-tidy/MiscModuleTest.cpp
+++ unittests/clang-tidy/MiscModuleTest.cpp
@@ -6,6 +6,7 @@
 namespace clang {
 namespace tidy {
 
+using misc::ArgumentCommentCheck;
 using readability::BracesAroundStatementsCheck;
 
 namespace test {