Add 7 new difftests and push constants support #698

Job	Run time
Test (ubuntu-24.04)	8m 10s
Test (windows-2022)	14m 38s
Compiletest (windows-2022)	16m 22s
Test (macOS-latest)	8m 46s
Compiletest (ubuntu-24.04)	8m 35s
Difftest (macOS-latest)	10m 48s
Difftest (ubuntu-24.04)	12m 23s
Lint	6m 39s
Difftest (windows-2022)	23m 22s
Android (ubuntu-24.04, aarch64-linux-android)	7m 59s
Compiletest (macOS-latest)	9m 49s
cargo-deny	1m 11s
test_success	2s
	2h 8m 44s

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