Support struct coercion in `type_union_resolution` #33335

Job	Run time
cargo check	10m 22s
Check cargo fmt	36s
build with wasm-pack	2m 42s
cargo test (macos)	10m 58s
cargo test (macos-aarch64)	11m 3s
Verify MSRV (Min Supported Rust Version)	8m 8s
Verify Vendored Code	49s
cargo test (win64)	1h 0m 7s
cargo examples (amd64)	13m 39s
cargo test datafusion-cli (amd64)	3m 51s
cargo test (amd64)	11m 16s
cargo test doc (amd64)	15m 14s
cargo doc	4m 6s
verify benchmark results (amd64)	12m 39s
check Cargo.toml formatting	2m 55s
clippy	5m 34s
check configs.md and ***_functions.md is up-to-date	3m 2s
cargo test hash collisions (amd64)	17m 21s
Run sqllogictest with Postgres runner	3m 44s
cargo test pyarrow (amd64)	2m 59s
	3h 21m 5s

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