cgen: replace `TNodeTable` usage with `Table` #3645

Job	Run time
Provide additional context for the workflow	5s
Build release binaries (Linux)	11m 15s
Build release binaries (macOS)	9m 39s
Build source archive	5m 13s
Build docs and release artifacts (Linux)	10m 41s
Build docs and release artifacts (macOS)	19m 54s
Build and test tooling (Linux)	4m 27s
Build and test tooling (macOS)	5m 9s
Test the compiler and stdlib (Linux, batch #0)	9m 53s
Test the compiler and stdlib (Linux, batch #1)	8m 14s
Test the compiler and stdlib (macOS, batch #0)	10m 42s
Test the compiler and stdlib (macOS, batch #1)	9m 22s
Build release artifacts from source archive (Linux)	13m 49s
Build release artifacts from source archive (macOS)	15m 36s
Test release artifacts	2m 15s
All check passed	1s
	2h 16m 15s

Provide feedback