add test for the pr

tests/issues/test_issue_6853.odin

@@ -0,0 +1,25 @@
+package test_issues
+
+import "core:testing"
+
+@(test)
+test_issue_6853 :: proc(t: ^testing.T) {
+
+	test_s :: struct {
+		a, b, c, d, e: u64,
+	}
+
+	expected := test_s{1, 2, 3, 4, 5}
+
+	case0 :: proc() -> (u64, u64) {return 1, 2}
+	test0 := test_s{case0(), 3, 4, 5}
+	testing.expect_value(t, test0, expected)
+
+	case1 :: proc() -> (u64, u64, u64) {return 1, 2, 3}
+	test1 := test_s{case1(), 4, 5}
+	testing.expect_value(t, test1, expected)
+
+	case2 :: proc() -> (u64, u64) {return 2, 3}
+	test2 := test_s{1, case2(), 4, 5}
+	testing.expect_value(t, test2, expected)
+}