Make CanvasItem's "drawing outside of NOTIFICATION_DRAW" error a macro #609

Job	Run time
📊 Static checks / Code style, file formatting, and docs	3m 50s
🍏 iOS / Template (target=template_release)	17m 3s
🍎 macOS / Editor (target=editor, tests=yes)	22m 42s
🤖 Android / Template (target=template_release)	29m 36s
🍎 macOS / Template (target=template_release)	14m 12s
🐧 Linux / Editor w/ Mono (target=editor)	17m 30s
🐧 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)	22m 36s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	32m 51s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	22m 15s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	29m 20s
🌐 Web / Template w/o threads (target=template_release, threads=no)	22m 34s
🏁 Windows / Editor (target=editor, tests=yes)	20m 23s
🐧 Linux / Template w/ Mono (target=template_release)	23m 26s
🏁 Windows / Template (target=template_release)	30m 16s
🐧 Linux / Minimal template (target=template_release, everything disabled)	14m 24s
🪲 Godot CPP / Build and test Godot CPP	6m 53s
	5h 29m 51s

Provide feedback