Make GsymResolver::find_line_info() report more error context #673

Job	Run time
Check generated C header	39s
Benchmark	5m 48s
Generate documentation	17s
Build [ubuntu-latest, 1.63.0, dev, ]	2m 56s
Build [ubuntu-latest, 1.63.0, release, ]	3m 6s
Build [ubuntu-latest, stable, dev, ]	37s
Build [ubuntu-latest, stable, release, ]	26s
Build [macos-latest, 1.63.0, dev, ]	3m 39s
Build [macos-latest, 1.63.0, release, ]	5m 36s
Build [macos-latest, stable, dev, ]	36s
Build [macos-latest, stable, release, ]	1m 4s
Build [ubuntu-latest, stable, dev, --no-default-features]	22s
Lint with clippy	1m 8s
No-op rebuilds	51s
Check code formatting	19s
Test and coverage	2m 39s
Test with release build	2m 7s
Test with address sanitizer	3m 39s
Test with leak sanitizer	2m 28s
	38m 17s

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