Update to fix with splat.

test/test_suite/functions/splat_err.c3

@@ -0,0 +1,62 @@
+import std;
+fn int test1()
+{
+	@test1();
+}
+
+fn int test2()
+{
+	@test2();
+}
+
+fn int test3()
+{
+	@test3();
+}
+
+fn int test4()
+{
+	@test4();
+}
+
+fn void test5()
+{
+	@test5();
+}
+
+fn void test6()
+{
+	@test6();
+}
+
+macro @test1($Foo = ...)
+{
+	return $Foo.typeid; // #error: The parameter '$Foo' was not provided by the caller.
+}
+
+macro @test2(#foo = ...)
+{
+	return #foo; // #error: The parameter '#foo' was not provided by the caller
+}
+
+macro @test3(foo = ...)
+{
+	return foo; // #error: The parameter 'foo' was not provided by the caller.
+}
+
+macro @test4($foo = ...)
+{
+	return $foo; // #error: The parameter '$foo' was not provided by the caller
+}
+
+macro @test5($Foo = ...)
+{
+	$Foo = int; // #error: The parameter '$Foo' was not provided by the caller
+	return $Foo.typeid;
+}
+
+macro @test6(foo = ...)
+{
+	foo = 1; // #error: The parameter 'foo' was not provided by the caller
+	return foo;
+}

test/test_suite/lambda/lambda_splat_macro2.c3t

@@ -0,0 +1,30 @@
+// #target: macos-x64
+module test;
+import std;
+fn int main()
+{
+	bool x = test1a()();
+	return 0;
+}
+
+macro test1a(bool $a = ...) => fn bool()
+{
+	return test1b(...$a);
+};
+macro test1b(bool $a = ...) => $defined($a) ??? $a : false;
+
+
+/* #expect: test.ll
+
+entry:
+  %x = alloca i8, align 1
+  %0 = call i8 @"test.test1a$lambda1"()
+  store i8 %0, ptr %x, align 1
+  ret i32 0
+}
+
+; Function Attrs: nounwind uwtable
+define internal zeroext i8 @"test.test1a$lambda1"() #0 {
+entry:
+  ret i8 0
+}