Add 7 new difftests and push constants support #707

Job	Run time
Android (ubuntu-24.04, aarch64-linux-android)	8m 22s
Test (windows-2022)	14m 26s
Test (macOS-latest)	8m 55s
Difftest (ubuntu-24.04)	12m 51s
Test (ubuntu-24.04)	8m 5s
Difftest (windows-2022)	23m 6s
Difftest (macOS-latest)	15m 30s
Lint	7m 10s
Compiletest (ubuntu-24.04)	8m 24s
Compiletest (windows-2022)	16m 24s
Compiletest (macOS-latest)	7m 51s
cargo-deny	1m 2s
test_success	7s
	2h 12m 13s

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