feat(codegen): add variadic function templates

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/iii/template-variadic-errors/case.json b/tests/iii/template-variadic-errors/case.json
new file mode 100644
index 0000000..ac4093a
--- /dev/null
+++ b/tests/iii/template-variadic-errors/case.json
@@ -0,0 +1,11 @@
+{
+  "errors": [
+    {"reason": "No matching overload for MissingBase", "line": 3},
+    {"reason": "A parameter pack expansion is only allowed in an argument list", "line": 8},
+    {"reason": "A parameter pack expansion is only allowed in an argument list", "line": 14},
+    {"reason": "A parameter pack expansion is only allowed in an argument list", "line": 19},
+    {"reason": "No matching overload for Exact", "line": 37},
+    {"reason": "No matching overload for Exact", "line": 38},
+    {"reason": "Ambiguous call to Tied", "line": 39}
+  ]
+}