Extend NTTP call test

Author: lucic71

cpp2rust/converter/converter_lib.cpp

@@ -8,6 +8,7 @@
 #include <clang/AST/Mangle.h>
 #include <clang/AST/ParentMapContext.h>
 #include <clang/Basic/SourceManager.h>
+#include <llvm/Support/ErrorHandling.h>
 #include <llvm/Support/Path.h>
 #include <llvm/Support/raw_ostream.h>
 
@@ -767,7 +768,10 @@ std::string GetNamedDeclAsString(const clang::NamedDecl *decl) {
 
   if (name.empty()) {
     auto *pdecl = llvm::dyn_cast<clang::ParmVarDecl>(decl);
-    assert(pdecl && "Unexpected unnamed construct");
+    if (!pdecl) {
+      decl->dump();
+      llvm::report_fatal_error("Unexpected unnamed construct");
+    }
 
     const auto *fn =
         llvm::dyn_cast<clang::FunctionDecl>(pdecl->getDeclContext());

tests/unit/lambda_to_fn_ptr.cpp

@@ -1,5 +1,5 @@
 // ADDITIONAL_COMPILE_FLAGS: -std=c++23
-// no-compile
+// translation-fail
 #include <assert.h>
 #include <stdarg.h>
 
@@ -25,6 +25,8 @@ int main() {
   assert(p(2) == 6);
 
   assert(call_nttp<+[](int x) { return x - 1; }>(5) == 4);
+  assert(call_nttp<+[](int x) { return x * 10; }>(5) == 50);
+  assert(call_nttp<[](int x) { return x + 100; }>(5) == 105);
 
   auto sum = [](int n, ...) {
     va_list ap;