Better error handling when resolving _generate_name #203

Job	Run time
🧪 Unit tests	2m 58s
cache-env	1s
🍎 macOS / Editor (x86_64, release)	6m 21s
🍎 macOS / Editor (arm64, release)	5m 5s
🪟 Windows / Editor (x86_64, release)	7m 40s
🐧 Linux / Editor (x86_64, release)	14m 43s
🪟 Windows / Editor .NET (x86_64, release)	11m 13s
🔌 GDExtension / 🐧 Linux (x86_64, release)	46s
🐧 Linux / Template (x86_64, release)	10m 15s
🔌 GDExtension / 🐧 Linux (x86_64, debug)	1m 7s
🔌 GDExtension / 🪟 Windows (x86_64, release)	1m 49s
🔌 GDExtension / 🪟 Windows (x86_64, debug)	1m 49s
🔌 GDExtension / 🍎 macOS (universal, release)	1m 10s
🔌 GDExtension / 🍎 macOS (universal, debug)	1m 23s
🍎 macOS / Make macOS Bundles	1m 24s
	1h 7m 44s

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