Patch to google checks in clang-tidy

[hallorant]

Summary

All of the links in the .h files point to the google.code hosted style guide. This simple patch updates them to github.

[Eugene.Zelenko]

Please update you patch to current code. Looks like addresses were fixed in files where they existed, but still need to be added to files without them.

[hokein]

LGTM. Thanks!

[alexfh]

As Eugene noted, the patch is seriously out of date. The only place where an old URL is still used, is docs/clang-tidy/checks/google-runtime-int.rst. However, we should check if style guide links can be added for other checks.

[alexfh]

Anyways, committed all useful changes from here in r270033. Thank you for the patch!

clang-tidy/google/AvoidCStyleCastsCheck.h

 
 /// Finds usages of C-style casts.
 ///
-/// http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Casting#Casting
+/// https://google.github.io/styleguide/cppguide.html#Casting
 ///
 /// Corresponding cpplint.py check name: 'readability/casting'.
 ///

clang-tidy/google/ExplicitConstructorCheck.h

 
 /// Checks that all single-argument constructors are explicit.
 ///
-/// See http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Explicit_Constructors
+/// See https://google.github.io/styleguide/cppguide.html#Explicit_Constructors
 class ExplicitConstructorCheck : public ClangTidyCheck {
 public:
   ExplicitConstructorCheck(StringRef Name, ClangTidyContext *Context)

clang-tidy/google/GlobalNamesInHeadersCheck.h

 
 // Flag global namespace pollution in header files.
 // Right now it only triggers on using declarations and directives.
+//
+// https://google.github.io/styleguide/cppguide.html#Namespaces
 class GlobalNamesInHeadersCheck : public ClangTidyCheck {
 public:
   GlobalNamesInHeadersCheck(StringRef Name, ClangTidyContext *Context)

clang-tidy/google/IntegerTypesCheck.h

 /// Finds uses of `short`, `long` and `long long` and suggest replacing them
 /// with `u?intXX(_t)?`.
 ///
+/// https://google.github.io/styleguide/cppguide.html#Integer_Types
+///
 /// Correspondig cpplint.py check: 'runtime/int'.
 class IntegerTypesCheck : public ClangTidyCheck {
 public:

clang-tidy/google/OverloadedUnaryAndCheck.h

 
 /// Finds overloads of unary `operator &`.
 ///
-/// http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Operator_Overloading#Operator_Overloading
+/// https://google.github.io/styleguide/cppguide.html#Operator_Overloading
 ///
 /// Corresponding cpplint.py check name: 'runtime/operator'.
 class OverloadedUnaryAndCheck : public ClangTidyCheck {

clang-tidy/google/TodoCommentCheck.h

 
 /// Finds TODO comments without a username or bug number.
 ///
+/// https://google.github.io/styleguide/cppguide.html#TODO_Comments
+///
 /// Corresponding cpplint.py check: 'readability/todo'
 class TodoCommentCheck : public ClangTidyCheck {
 public:

clang-tidy/google/UnnamedNamespaceInHeaderCheck.h

 
 /// Finds anonymous namespaces in headers.
 ///
-/// http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Namespaces#Namespaces
+/// https://google.github.io/styleguide/cppguide.html#Namespaces
 ///
 /// Corresponding cpplint.py check name: 'build/namespaces'.
 class UnnamedNamespaceInHeaderCheck : public ClangTidyCheck {

clang-tidy/google/UsingNamespaceDirectiveCheck.h

 
 /// Finds using namespace directives.
 ///
-/// http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Namespaces#Namespaces
+/// https://google.github.io/styleguide/cppguide.html#Namespaces
 ///
 /// The check implements the following rule of the Google C++ Style Guide:
 ///