Fix certain symbols being incorrectly identified as incomplete boolea… #183

Job	Run time
Setup Build Matrix (false, ion-rust, windows, macos, ubuntu, al2-x86, al2-arm, windows, macos, ub...	1s
Build and Test (windows, default)	3m 38s
Build and Test (windows, all)	4m 13s
Build and Test (windows, experimental-ion-hash)	2m 17s
Build and Test (windows, experimental)	3m 15s
Build and Test (macos, default)	50s
Build and Test (macos, all)	1m 8s
Build and Test (macos, experimental-ion-hash)	54s
Build and Test (macos, experimental)	56s
Build and Test (ubuntu, default)	58s
Build and Test (ubuntu, all)	1m 54s
Build and Test (ubuntu, experimental-ion-hash)	57s
Build and Test (ubuntu, experimental)	1m 5s
Build and Test Confirmation	1s
	22m 7s

Provide feedback