Add context in name validation errors #2076

Job	Run time
Clippy	54s
Cargo Deny	9s
Format	5s
Cargo Package	1m 4s
Check cross compilation targets	27s
Build+test (--all-features, stable)	1m 5s
MSRV	53s
Check for documentation errors (stable)	49s
Build+test (stable, ubuntu-latest)	42s
Validate external types appearing in public API	1m 3s
Check for documentation errors (beta)	59s
Build+test (--features=alloc, stable, ubuntu-latest)	43s
Check for documentation errors (nightly)	57s
Measure coverage	1m 15s
Build+test (--no-default-features, stable, ubuntu-latest)	36s
Check semver compatibility	54s
Build+test (--no-default-features --features alloc,std, stable, ubuntu-latest)	28s
Feature Powerset	1m 45s
Build+test (--all-features, --release, stable, ubuntu-latest)	1m 56s
Verify that no-std modes do not rely on libstd (--no-default-features)	6s
Build+test (--all-features, nightly, ubuntu-latest)	1m 11s
Verify that no-std modes do not rely on libstd (--no-default-features --features alloc)	8s
Build+test (--all-features, beta, ubuntu-latest)	1m 16s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, macos-latest)	59s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, windows-latest)	3m 4s
Build+test (--no-default-features --features alloc,std,aws-lc-rs, stable, ubuntu-latest)	55s
	24m 23s

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