null propagation: Fix Throw expression bug #2922

Job	Run time
Build published projects without warnings (Release)	2m 44s
Build all projects without errors	7m 46s
JS unit tests	1m 2s
Build published projects without warnings (Debug)	2m 55s
.NET unit tests (ubuntu-latest)	3m 31s
.NET unit tests (windows-2022)	9m 55s
.NET unit tests (macOS-latest)	5m 51s
UI tests (chrome, ubuntu-latest, Production, Default)	13m 53s
UI tests (chrome, windows-2022, Development, Default)	27m 22s
UI tests (firefox, ubuntu-latest, Development, Default)	18m 59s
UI tests (firefox, ubuntu-latest, Production, Default)	17m 55s
UI tests (firefox, ubuntu-latest, Development, ExperimentalFeaturesTests)	18m 44s
UI tests (chrome, ubuntu-latest, Production, ExperimentalFeaturesTests)	13m 36s
	2h 24m 13s

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