UserDefinedValueType: from simple name to canonical name.

libsolidity/ast/AST.cpp

@@ -341,6 +341,11 @@ Type const* UserDefinedValueTypeDefinition::type() const
 	return TypeProvider::typeType(TypeProvider::userDefinedValueType(*this));
 }
 
+TypeDeclarationAnnotation& UserDefinedValueTypeDefinition::annotation() const
+{
+	return initAnnotation<TypeDeclarationAnnotation>();
+}
+
 Type const* StructDefinition::type() const
 {
 	solAssert(annotation().recursive.has_value(), "Requested struct type before DeclarationTypeChecker.");

libsolidity/ast/AST.h

@@ -750,6 +750,8 @@ public:
 
 	Type const* type() const override;
 
+	TypeDeclarationAnnotation& annotation() const override;
+
 	TypeName const* underlyingType() const { return m_underlyingType.get(); }
 	bool isVisibleViaContractTypeAccess() const override { return true; }
 

libsolidity/ast/Types.cpp

@@ -2555,7 +2555,7 @@ bool UserDefinedValueType::operator==(Type const& _other) const
 
 string UserDefinedValueType::toString(bool /* _short */) const
 {
-	return "user defined type " + definition().name();
+	return "user defined type " + *definition().annotation().canonicalName;
 }
 
 vector<tuple<string, Type const*>> UserDefinedValueType::makeStackItems() const