Fix C++ type detection

A C++ type can't be followed by `::`, e.g. we should never match `Foo`
in `Foo::Bar` as a type.

Fixes commit 84ec80f ("Detect C++ style types").

Closes #79

Author: locker

checkpatch.pl

@@ -598,7 +598,7 @@ sub find_standard_signature {
 	qr{${Ident}_f},
 	qr{${Ident}_fn},
 	qr{${Ident}_cb},
-	qr{(?:::)?(?:[A-Z][a-z][A-Za-z\d]*::)*[A-Z][a-z][A-Za-z\d]*},
+	qr{(?:::)?(?:[A-Z][a-z][A-Za-z\d]*::)*[A-Z][a-z][A-Za-z\d]*(?!::)},
 	@typeListMisordered,
 );