Assign return value on Variant operator failure #82

Job	Run time
📊 Static checks / Code style, file formatting, and docs	32s
🍏 iOS / Template (target=template_release)	1m 52s
🍎 macOS / Editor (target=editor, tests=yes)	36m 3s
🤖 Android / Editor (target=editor)	24m 15s
🐧 Linux / Editor w/ Mono (target=editor)	40m 16s
🍎 macOS / Template (target=template_release)	3m 19s
🤖 Android / Template arm32 (target=template_release, arch=arm32)	16m 27s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	6m 13s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	47m 30s
🤖 Android / Template arm64 (target=template_release, arch=arm64)	16m 47s
🌐 Web / Template w/o threads (target=template_release, threads=no)	6m 37s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	35m 58s
🏁 Windows / Editor (target=editor, tests=yes)	48m 30s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	33m 0s
🏁 Windows / Template (target=template_release)	36m 48s
🐧 Linux / Template w/ Mono (target=template_release)	6m 9s
🐧 Linux / Minimal template (target=template_release, everything disabled)	2m 21s
🪲 Godot CPP / Build and test Godot CPP	8m 14s
	6h 10m 51s

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