Giorgi / DuckDB.NET / 38361832757

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Mark the throw helpers DoesNotReturn

ThrowNoRowRead of the data reader and ThrowException of the writers only
throw, and now say so, as ThrowColumnOutOfRange and
ThrowNullReceivedByNonNullableParam already did.

DoesNotFit of the decimal writer loses NoInlining. It returns the
exception for its caller to throw, and the JIT does not inline a call
whose only use is a throw: the final code of AppendDecimal and
AppendLongDecimal is the same size with and without it, on .NET 8 and
.NET 10, and still calls it.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TXdqHuNtM7YXS8B65qdfxX

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