xo-alloc2 scaffold for ACollector + AGCObject facets. [WIP]

xo-alloc2/src/alloc2/IGCObject_Any.cpp

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+/** @file IGCObject_Any.cpp
+ *
+ *  @author Roland Conybeare, Dec 2025
+ **/
+
+#include "IGCObject_Any.hpp"
+#include <iostream>
+
+namespace xo {
+    using xo::facet::DVariantPlaceholder;
+    using xo::facet::typeseq;
+    using xo::facet::valid_facet_implementation;
+
+    namespace mm {
+
+        void
+        IGCObject_Any::_fatal() {
+            std::cerr << "fatal"
+                      << ": attempt to call uninitialized"
+                      << " IGCObject_Any method"
+                      << std::endl;
+            std::terminate();
+        }
+
+        int32_t
+        IGCObject_Any::s_typeseq = typeseq::id<DVariantPlaceholder>();
+
+        bool
+        IGCObject_Any::_valid = valid_facet_implementation<AGCObject, IGCObject_Any>();
+
+    } /*namespace mm*/
+} /*namespace xo*/
+
+/* end IGCObject_Any.cpp */