Add 7 new difftests and push constants support #623

Job	Run time
Difftest (windows-2022)	29m 34s
Compiletest (ubuntu-24.04)	8m 0s
Compiletest (windows-2022)	16m 9s
Compiletest (macOS-latest)	9m 2s
Difftest (macOS-latest)	15m 16s
Difftest (ubuntu-24.04)	15m 1s
Android (ubuntu-24.04, aarch64-linux-android)	8m 10s
Test (windows-2022)	15m 53s
Test (macOS-latest)	5m 50s
Lint	6m 43s
cargo-deny	51s
Test (ubuntu-24.04)	8m 0s
test_success	2s
	2h 18m 31s

Provide feedback