add bracket syntax replace tests

lang/test_comparison_utils.go

@@ -0,0 +1,46 @@
+package lang
+
+// Basic comparison utilities for parser tests
+
+// Helper functions for creating pointers
+func stringPtr(s string) *string {
+	return &s
+}
+
+func intPtr(i int) *int {
+	return &i
+}
+
+// Pointer comparison functions
+func stringPtrEqual(got, want *string) bool {
+	if (got == nil) != (want == nil) {
+		return false
+	}
+	if got != nil && want != nil {
+		return *got == *want
+	}
+	return true
+}
+
+func intPtrEqual(got, want *int) bool {
+	if (got == nil) != (want == nil) {
+		return false
+	}
+	if got != nil && want != nil {
+		return *got == *want
+	}
+	return true
+}
+
+// Slice comparison functions
+func stringSliceEqual(got, want []string) bool {
+	if len(got) != len(want) {
+		return false
+	}
+	for i, s := range got {
+		if s != want[i] {
+			return false
+		}
+	}
+	return true
+}