Annotate the ClassSpecifierAST node with the class symbol.

src/shared/cplusplus/AST.h

@@ -515,6 +515,9 @@ public:
     DeclarationAST *member_specifiers;
     unsigned rbrace_token;
 
+public: // annotations
+    Class *class_symbol;
+
 public:
     virtual unsigned firstToken() const;
     virtual unsigned lastToken() const;

src/shared/cplusplus/CheckSpecifier.cpp

@@ -300,6 +300,7 @@ bool CheckSpecifier::visit(ClassSpecifierAST *ast)
 {
     Name *className = semantic()->check(ast->name, _scope);
     Class *klass = control()->newClass(ast->firstToken(), className);
+    ast->class_symbol = klass;
     unsigned classKey = tokenKind(ast->classkey_token);
     if (classKey == T_CLASS)
         klass->setClassKey(Class::ClassKey);