fix(cpp1): emit _template-head_ of variable template

Author: JohelEGP

regression-tests/pure2-bugfix-for-variable-template.cpp2

@@ -0,0 +1,2 @@
+v0: <V: _> const int = 0;
+main: () -> int      = v0<0>;

regression-tests/test-results/gcc-13/pure2-bugfix-for-variable-template.cpp.execution

@@ -0,0 +1,23 @@
+
+#define CPP2_USE_MODULES         Yes
+
+//=== Cpp2 type declarations ====================================================
+
+
+#include "cpp2util.h"
+
+
+
+//=== Cpp2 type definitions and function declarations ===========================
+
+#line 1 "pure2-bugfix-for-variable-template.cpp2"
+template<auto V> extern int const v0;
+[[nodiscard]] auto main() -> int;
+
+
+//=== Cpp2 function definitions =================================================
+
+#line 1 "pure2-bugfix-for-variable-template.cpp2"
+template<auto V> int const v0 {0}; 
+[[nodiscard]] auto main() -> int { return v0<0>; }
+

regression-tests/test-results/gcc-13/pure2-bugfix-for-variable-template.cpp.output

@@ -0,0 +1,2 @@
+pure2-bugfix-for-variable-template.cpp2... ok (all Cpp2, passes safety checks)
+

regression-tests/test-results/pure2-bugfix-for-variable-template.cpp

@@ -5066,6 +5066,7 @@ class cppfront
             n.template_parameters
             && (
                 printer.get_phase() <  printer.phase2_func_defs
+                || n.is_object()
                 || (
                     n.is_function()
                     && n.has_name()     // only if it is not unnambed function aka lambda