OptionaloldProgram: SemanticDiagnosticsBuilderProgramOptionalconfigFileParsingDiagnostics: readonly tsc.Diagnostic[]Create the builder to manage semantic diagnostics and cache them
Optionalhost: CompilerHostOptionaloldProgram: SemanticDiagnosticsBuilderProgramOptionalconfigFileParsingDiagnostics: readonly tsc.Diagnostic[]OptionalprojectReferences: readonly ProjectReference[]
Create the builder to manage semantic diagnostics and cache them