Add 7 new difftests and push constants support #658

Job	Run time
Compiletest (ubuntu-24.04)	8m 7s
Android (ubuntu-24.04, aarch64-linux-android)	8m 39s
Test (windows-2022)	16m 31s
Test (macOS-latest)	11m 42s
Compiletest (windows-2022)	15m 17s
Compiletest (macOS-latest)	9m 52s
Test (ubuntu-24.04)	8m 14s
Difftest (ubuntu-24.04)	13m 13s
Difftest (windows-2022)	24m 3s
Lint	6m 20s
cargo-deny	55s
Difftest (macOS-latest)	10m 38s
test_success	2s
	2h 13m 33s

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