Speed up building the dictionary of reused Elm value encodings #3152

Possible null reference argument for parameter 'fileStoreReader' in 'ProcessStoreWriterInFileStore.ProcessStoreWriterInFileStore(IFileStoreReader fileStoreReader, Func<DateTimeOffset> getTimeForCompositionLogBatch, IFileStoreWriter fileStore)'.

Possible null reference argument for parameter 'fileStore' in 'ProcessStoreWriterInFileStore.ProcessStoreWriterInFileStore(IFileStoreReader fileStoreReader, Func<DateTimeOffset> getTimeForCompositionLogBatch, IFileStoreWriter fileStore)'.

Possible null reference argument for parameter 'urls' in 'IWebHostBuilder HostingAbstractionsWebHostBuilderExtensions.UseUrls(IWebHostBuilder hostBuilder, params string[] urls)'.

Possible null reference argument for parameter 'fileStore' in 'IWebHostBuilder Configuration.WithProcessStoreFileStore(IWebHostBuilder orig, IFileStore fileStore)'.

Argument of type 'ImmutableList<(string? name, TreeNodeWithStringPath component)>' cannot be used for parameter 'treeContent' of type 'IReadOnlyList<(string name, TreeNodeWithStringPath component)>' in 'TreeNodeWithStringPath TreeNodeWithStringPath.SortedTree(IReadOnlyList<(string name, TreeNodeWithStringPath component)> treeContent)' due to differences in the nullability of reference types.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'value' in 'KeyValuePair<string, string>.KeyValuePair(string key, string value)'.

Nullability of reference types in type of parameter 'argumentFromCLI' of 'string Program.LoadArgumentFromUserInterfaceAsJsonOrFileTextContext(string argumentFromCLI)' doesn't match the target delegate 'Func<string?, string>' (possibly because of nullability attributes).

Possible null reference argument for parameter 'functionName' in 'ApplyFunctionReport Program.ApplyFunction(string site, string functionName, IReadOnlyList<string> serializedArgumentsJson, bool commitResultingState, string? siteDefaultPassword, bool promptForPasswordOnConsole)'.

implement/Pine.Core/Json/JsonConverterForPineValue.cs#L72

Possible null reference argument for parameter 'str' in 'PineValue PineValueAsString.ValueFromString(string str)'.

implement/Pine.Core/ReusedInstances.cs#L383

Dereference of a possibly null reference.

implement/Pine.Core/ReusedInstances.cs#L385

Dereference of a possibly null reference.

implement/Pine.Core/ReusedInstances.cs#L393

Dereference of a possibly null reference.

implement/Pine.Core/ReusedInstances.cs#L402

Dereference of a possibly null reference.

implement/Pine.Core/ReusedInstances.cs#L404

Dereference of a possibly null reference.