Make `ContextCompat` consistent and non-ambiguous with `WrapErr` #465

Job	Run time
Test Suite	2m 48s
Test Suite (stable)	1m 2s
Test Suite (--no-default-features)	2m 42s
Clippy (stable)	30s
Check (stable)	23s
Test Suite (stable, --no-default-features)	59s
Test Suite (--no-default-features --features track-caller)	2m 39s
Test Suite (stable, --no-default-features --features track-caller)	1m 2s
Test Suite (--no-default-features --features auto-install)	2m 42s
Test Suite (stable, --no-default-features --features auto-install)	57s
Rustfmt (stable)	15s
Miri	1m 25s
Test Suite (stable, --features pyo3)	1m 1s
Test Suite (ubuntu-latest)	1m 5s
Test Suite (stable, --all-features)	1m 9s
Test Suite (windows-latest)	2m 8s
Test Suite (beta)	1m 8s
Test Suite (macOS-latest)	53s
Test Suite (beta, --no-default-features)	58s
Test Suite (beta, --no-default-features --features track-caller)	1m 0s
Test Suite (beta, --no-default-features --features auto-install)	58s
Test Suite (beta, --features pyo3)	1m 9s
Test Suite (beta, --all-features)	1m 19s
Test Suite (nightly)	1m 8s
Test Suite (nightly, --no-default-features)	1m 6s
Test Suite (nightly, --no-default-features --features track-caller)	1m 6s
Test Suite (nightly, --no-default-features --features auto-install)	1m 8s
Test Suite (nightly, --features pyo3)	1m 6s
Test Suite (nightly, --all-features)	1m 11s
	36m 57s

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