Add context in name validation errors #2083

Job	Run time
Validate external types appearing in public API	1m 1s
Clippy	1m 19s
Measure coverage	1m 14s
Check cross compilation targets	28s
Cargo Deny	8s
Feature Powerset	1m 4s
MSRV	53s
Verify that no-std modes do not rely on libstd (--no-default-features)	6s
Cargo Package	51s
Verify that no-std modes do not rely on libstd (--no-default-features --features alloc)	6s
Check for documentation errors (stable)	48s
Check for documentation errors (beta)	55s
Check for documentation errors (nightly)	55s
Format	12s
Check semver compatibility	57s
Build+test (--all-features, stable)	1m 13s
Build+test (stable, ubuntu-latest)	42s
Build+test (--features=alloc, stable, ubuntu-latest)	41s
Build+test (--no-default-features, stable, ubuntu-latest)	30s
Build+test (--no-default-features --features alloc,std, stable, ubuntu-latest)	31s
Build+test (--all-features, --release, stable, ubuntu-latest)	1m 59s
Build+test (--all-features, nightly, ubuntu-latest)	1m 14s
Build+test (--all-features, beta, ubuntu-latest)	1m 20s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, macos-latest)	49s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, windows-latest)	3m 45s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, ubuntu-latest)	40s
	24m 21s

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