C++: Do type and name equality checking in a safe manner.

Change the TypeMatcher to also match names, and use two "block" lists
in SafeMatcher to prevent infinite recursion.

Task-number: QTCREATORBUG-11240
Change-Id: I0367ae795ee6be579b83aeb8d46723c877e4aa75
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/libs/3rdparty/cplusplus/Literals.cpp

@@ -20,6 +20,7 @@
 
 #include "Literals.h"
 #include "NameVisitor.h"
+#include "Matcher.h"
 #include <cstring>
 #include <algorithm>
 #include <iostream>
@@ -200,6 +201,13 @@ Identifier::~Identifier()
 void Identifier::accept0(NameVisitor *visitor) const
 { visitor->visit(this); }
 
+bool Identifier::match0(const Name *otherName, Matcher *matcher) const
+{
+    if (const Identifier *id = otherName->asNameId())
+        return matcher->match(this, id);
+    return false;
+}
+
 bool Identifier::isEqualTo(const Name *other) const
 {
     if (this == other)