114Return BadExpression(owningSyntax, ImmutableArray(Of BoundExpression).Empty, ErrorTypeSymbol.UnknownResultType) 389Return BadExpression(node, ErrorTypeSymbol.UnknownResultType) 427Return BadExpression(node, ErrorTypeSymbol.UnknownResultType) 462Return BadExpression(node, ErrorTypeSymbol.UnknownResultType) 469Return BadExpression(node, ErrorTypeSymbol.UnknownResultType)

537lValue = BadExpression(identifierName, ErrorTypeSymbol.UnknownResultType) 548lValue = BadExpression(identifierName, ErrorTypeSymbol.UnknownResultType)

60Return BadExpression(addressOfSyntax, boundOperand, LookupResultKind.NotAValue, ErrorTypeSymbol.UnknownResultType) 158ErrorTypeSymbol.UnknownResultType, 187ErrorTypeSymbol.UnknownResultType,

64Return ErrorTypeSymbol.UnknownResultType

41Return BadExpression(node, ErrorTypeSymbol.UnknownResultType) 259Return BadExpression(node, ImmutableArray(Of BoundExpression).Empty, ErrorTypeSymbol.UnknownResultType) 319Return BadExpression(node, args, ErrorTypeSymbol.UnknownResultType) 932Return BadExpression(node, receiver, LookupResultKind.NotAValue, ErrorTypeSymbol.UnknownResultType) 956resultType = ErrorTypeSymbol.UnknownResultType 982Return New BoundBadVariable(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1003Return New BoundBadVariable(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1010Return New BoundBadVariable(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1014Return New BoundBadVariable(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1018Return New BoundBadVariable(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1227Return BadExpression(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 1240Return BadExpression(syntax, expr, LookupResultKind.NotAValue, ErrorTypeSymbol.UnknownResultType) 1248Return BadExpression(syntax, expr, LookupResultKind.NotAValue, ErrorTypeSymbol.UnknownResultType) 1283Return BadExpression(syntax, expr, LookupResultKind.NotAValue, ErrorTypeSymbol.UnknownResultType) 1459Return BadExpression(expr.Syntax, expr, ErrorTypeSymbol.UnknownResultType) 1699expression = BadExpression(node, expression, LookupResultKind.NotAVariable, ErrorTypeSymbol.UnknownResultType) 1963If(dominantType, ErrorTypeSymbol.UnknownResultType), 2113type:=If(dominantType, ErrorTypeSymbol.UnknownResultType), 2316Return New BoundMeReference(node, If(Me.ContainingType, ErrorTypeSymbol.UnknownResultType), hasErrors:=True) 2325Dim result = New BoundMeReference(node, If(Me.ContainingType, ErrorTypeSymbol.UnknownResultType)) 2339Return New BoundMyBaseReference(node, If(Me.ContainingType IsNot Nothing, Me.ContainingType.BaseTypeNoUseSiteDiagnostics, ErrorTypeSymbol.UnknownResultType), hasErrors:=True) 2343Return New BoundMyBaseReference(node, If(Me.ContainingType IsNot Nothing, Me.ContainingType.BaseTypeNoUseSiteDiagnostics, ErrorTypeSymbol.UnknownResultType)) 2351Return New BoundMyClassReference(node, If(Me.ContainingType, ErrorTypeSymbol.UnknownResultType), hasErrors:=True) 2355Return New BoundMyClassReference(node, If(Me.ContainingType, ErrorTypeSymbol.UnknownResultType)) 2443Return BadExpression(node, ErrorTypeSymbol.UnknownResultType) 2785Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 2808Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 2855Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 2882Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 2900Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 2905Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 2923Return BadExpression(node, left, ErrorTypeSymbol.UnknownResultType) 3029localType = ErrorTypeSymbol.UnknownResultType 3225Return BadExpression(node, ErrorTypeSymbol.UnknownResultType) 3722ErrorTypeSymbol.UnknownResultType) 3803ErrorTypeSymbol.UnknownResultType) 3840Return BadExpression(node, children.ToImmutableAndFree(), ErrorTypeSymbol.UnknownResultType) 3962Return ErrorTypeSymbol.UnknownResultType 4365upperBound = BadExpression(argumentSyntax, ErrorTypeSymbol.UnknownResultType) 4643Return BadExpression(node, operand, ErrorTypeSymbol.UnknownResultType) 4651Return BadExpression(node, operand, ErrorTypeSymbol.UnknownResultType) 4656Return BadExpression(node, operand, ErrorTypeSymbol.UnknownResultType) 4874getAwaiter = BadExpression(node, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 4888isCompleted = BadExpression(node, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 4892getResult = BadExpression(node, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated()

549targetType = If(boundInitValue.Type, ErrorTypeSymbol.UnknownResultType) 603Return BadExpression(valueSyntax, ErrorTypeSymbol.UnknownResultType) 629Return BadExpression(valueSyntax, valueExpression, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 634valueExpression = BadExpression(name, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated()

326Return BadExpression(node, badExpressionChildren.ToImmutableAndFree(), ErrorTypeSymbol.UnknownResultType) 791ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1752ElseIf commonReturnType IsNot ErrorTypeSymbol.UnknownResultType AndAlso 1754commonReturnType = ErrorTypeSymbol.UnknownResultType 1762Return If(commonReturnType, ErrorTypeSymbol.UnknownResultType)

54Return BadExpression(node, children.ToImmutableAndFree, ErrorTypeSymbol.UnknownResultType) 140Return BadExpression(node, arguments, ErrorTypeSymbol.UnknownResultType) 158Return BadExpression(node, children.ToImmutableAndFree, ErrorTypeSymbol.UnknownResultType)

723ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 726target = BadExpression(namedFieldInitializer, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 935ErrorTypeSymbol.UnknownResultType,

295Return New BoundBinaryOperator(node, preliminaryOperatorKind Or BinaryOperatorKind.Error, left, right, CheckOverflow, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 1151Return New BoundUnaryOperator(node, preliminaryOperatorKind Or UnaryOperatorKind.Error, operand, CheckOverflow, ErrorTypeSymbol.UnknownResultType, HasErrors:=True)

42Return BadExpression(group, ErrorTypeSymbol.UnknownResultType) 49Return BadExpression([function], ErrorTypeSymbol.UnknownResultType) 63Return BadExpression(query, ErrorTypeSymbol.UnknownResultType) 81Return BadExpression(query, ErrorTypeSymbol.UnknownResultType) 219BadExpression(aggregate, source, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated(), 221ErrorTypeSymbol.UnknownResultType, 223ErrorTypeSymbol.UnknownResultType) 278Return New BoundQueryExpression(query, source, If(malformedSyntax, ErrorTypeSymbol.UnknownResultType, source.Type), hasErrors:=malformedSyntax) 347ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 542ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 686ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 776BadExpression(clauseSyntax, source, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated(), 779ErrorTypeSymbol.UnknownResultType)), 780ErrorTypeSymbol.UnknownResultType, 782ErrorTypeSymbol.UnknownResultType, 823ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 980Dim rangeVar = RangeVariableSymbol.CreateForErrorRecovery(Me, clauseSyntax, ErrorTypeSymbol.UnknownResultType) 984New BoundQuerySource(BadExpression(clauseSyntax, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated()).MakeCompilerGenerated(), 987ErrorTypeSymbol.UnknownResultType, 989ErrorTypeSymbol.UnknownResultType, 993BadExpression(clauseSyntax, sourceOpt, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated(), 995ErrorTypeSymbol.UnknownResultType, 997ErrorTypeSymbol.UnknownResultType, 1138ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 1400Dim rangeVar = RangeVariableSymbol.CreateForErrorRecovery(Me, join, ErrorTypeSymbol.UnknownResultType) 1403New BoundQuerySource(BadExpression(join, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated()).MakeCompilerGenerated(), 1406ErrorTypeSymbol.UnknownResultType, 1408ErrorTypeSymbol.UnknownResultType, 1520ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 1646Dim rangeVar = RangeVariableSymbol.CreateForErrorRecovery(Me, groupJoin, ErrorTypeSymbol.UnknownResultType) 1649New BoundQuerySource(BadExpression(groupJoin, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated()).MakeCompilerGenerated(), 1652ErrorTypeSymbol.UnknownResultType, 1654ErrorTypeSymbol.UnknownResultType, 1703ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 1810ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 1953Dim groupType As TypeSymbol = ErrorTypeSymbol.UnknownResultType 2029Dim groupType As TypeSymbol = ErrorTypeSymbol.UnknownResultType 2377ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 2418ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 2485ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 2534BadExpression(orderBy, source, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated(), 2538ErrorTypeSymbol.UnknownResultType, 2574ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 2763selector = BadExpression(selectorSyntax, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3013ErrorTypeSymbol.UnknownResultType)) 3015letSelector = BadExpression(aggregate, group, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3300outerKey = BadExpression(join, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3301innerKey = BadExpression(join, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3319If outerKey.Type IsNot ErrorTypeSymbol.UnknownResultType Then 3320outerKey = BadExpression(outerKey.Syntax, outerKey, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3322If innerKey.Type IsNot ErrorTypeSymbol.UnknownResultType Then 3323innerKey = BadExpression(innerKey.Syntax, innerKey, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3363outerKey = BadExpression(join, outerKeys.AsImmutableOrNull(), ErrorTypeSymbol.UnknownResultType) 3364innerKey = BadExpression(join, innerKeys.AsImmutableOrNull(), ErrorTypeSymbol.UnknownResultType) 3848Dim rangeVar = RangeVariableSymbol.CreateForErrorRecovery(Me, syntaxNode, ErrorTypeSymbol.UnknownResultType) 3851selectors(keys) = BadExpression(syntaxNode, m_GroupReference, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3884rangeVar = RangeVariableSymbol.CreateForErrorRecovery(Me, syntaxNode, ErrorTypeSymbol.UnknownResultType) 3885intoSelector = BadExpression(syntaxNode, m_GroupReference, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 3957ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 4113Return BadExpression(group, m_GroupReference, ErrorTypeSymbol.UnknownResultType) 4166variableType = ErrorTypeSymbol.UnknownResultType 4236If(sourceIsNotQueryable, ErrorTypeSymbol.UnknownResultType, source.Type), 4701boundCall = BadExpression(node, childBoundNodes, ErrorTypeSymbol.UnknownResultType) 4711boundCall = New BoundBadExpression(node, resultKind, symbols.ToImmutableAndFree(), childBoundNodes, ErrorTypeSymbol.UnknownResultType, hasErrors:=True)

4783exceptionSource = BadExpression(exceptionSource.Syntax, exceptionSource, ErrorTypeSymbol.UnknownResultType).MakeCompilerGenerated() 4959methodReturnType = ErrorTypeSymbol.UnknownResultType 5101Return ErrorTypeSymbol.UnknownResultType

734memberAccess = BadExpression(syntax, ImmutableArray.Create(receiver, name), ErrorTypeSymbol.UnknownResultType) 1019Return BadExpression(syntax, arguments, ErrorTypeSymbol.UnknownResultType)

64If(methodSymbol.ReturnType.IsVoidType(), ErrorTypeSymbol.UnknownResultType, methodSymbol.ReturnType))

23Dim elementType As TypeSymbol = ErrorTypeSymbol.UnknownResultType

1216If TypeSymbol.Equals(referenceType, ErrorTypeSymbol.UnknownResultType, TypeCompareKind.ConsiderEverything) Then

146Return ErrorTypeSymbol.UnknownResultType

32Private _lazySystemStringType As NamedTypeSymbol = ErrorTypeSymbol.UnknownResultType 45If _lazySystemStringType Is ErrorTypeSymbol.UnknownResultType Then 53If TypeSymbol.Equals(Interlocked.CompareExchange(Of NamedTypeSymbol)(_lazySystemStringType, type, ErrorTypeSymbol.UnknownResultType), ErrorTypeSymbol.UnknownResultType, TypeCompareKind.ConsiderEverything) Then

149ErrorTypeSymbol.UnknownResultType, 299ErrorTypeSymbol.UnknownResultType,

721ErrorTypeSymbol.UnknownResultType, hasErrors:=True).ToStatement()

74newGuid = New BoundBadExpression(node.Syntax, LookupResultKind.NotCreatable, ImmutableArray(Of Symbol).Empty, ImmutableArray(Of BoundExpression).Empty, ErrorTypeSymbol.UnknownResultType, hasErrors:=True) 83callGetTypeFromCLSID = New BoundBadExpression(node.Syntax, LookupResultKind.OverloadResolutionFailure, ImmutableArray(Of Symbol).Empty, ImmutableArray(Of BoundExpression).Empty, ErrorTypeSymbol.UnknownResultType, hasErrors:=True)

165Return New BoundBadExpression(syntax, LookupResultKind.NotReferencable, ImmutableArray(Of Symbol).Empty, ImmutableArray.Create(rewrittenReceiver), ErrorTypeSymbol.UnknownResultType, hasErrors:=True)

225Return New BoundBadExpression(syntaxNode, LookupResultKind.NotReferencable, ImmutableArray(Of Symbol).Empty, parameters, ErrorTypeSymbol.UnknownResultType, hasErrors:=True).ToStatement() 249boundMonitorExitCall = New BoundBadExpression(syntaxNode, LookupResultKind.NotReferencable, ImmutableArray(Of Symbol).Empty, ImmutableArray.Create(boundLockObject), ErrorTypeSymbol.UnknownResultType, hasErrors:=True)

455Dim boundNode = New BoundBadExpression(_syntax, LookupResultKind.Empty, ImmutableArray(Of Symbol).Empty, ImmutableArray.Create(subExpressions), ErrorTypeSymbol.UnknownResultType, hasErrors:=True)

157ErrorTypeSymbol.UnknownResultType,

12Public Shared ReadOnly UnknownMethod As ErrorMethodSymbol = New ErrorMethodSymbol(ErrorTypeSymbol.UnknownResultType, ErrorTypeSymbol.UnknownResultType, String.Empty)

71Private _lazyCoClassType As TypeSymbol = ErrorTypeSymbol.UnknownResultType 1057If _lazyCoClassType Is ErrorTypeSymbol.UnknownResultType Then 1060DirectCast(ErrorTypeSymbol.UnknownResultType, TypeSymbol))

711Private _lazyDeclaredBase As NamedTypeSymbol = ErrorTypeSymbol.UnknownResultType 740If _lazyDeclaredBase Is ErrorTypeSymbol.UnknownResultType Then 742AtomicStoreReferenceAndDiagnostics(_lazyDeclaredBase, MakeDeclaredBase(basesBeingResolved, diagnostics), diagnostics, ErrorTypeSymbol.UnknownResultType) 849Private _lazyBaseType As NamedTypeSymbol = ErrorTypeSymbol.UnknownResultType 858If Me._lazyBaseType Is ErrorTypeSymbol.UnknownResultType Then 868AtomicStoreReferenceAndDiagnostics(Me._lazyBaseType, acyclicBase, diagnostics, ErrorTypeSymbol.UnknownResultType) 907If base IsNot ErrorTypeSymbol.UnknownResultType Then

41Private _lazyCoClass As TypeSymbol = ErrorTypeSymbol.UnknownResultType 159If _lazyCoClass Is ErrorTypeSymbol.UnknownResultType Then 164Interlocked.CompareExchange(_lazyCoClass, coClass, DirectCast(ErrorTypeSymbol.UnknownResultType, TypeSymbol))

15Private _lazyAnonymousDelegateSymbol As NamedTypeSymbol = ErrorTypeSymbol.UnknownResultType 58If Me._lazyAnonymousDelegateSymbol Is ErrorTypeSymbol.UnknownResultType Then 60Dim oldValue As NamedTypeSymbol = Interlocked.CompareExchange(Me._lazyAnonymousDelegateSymbol, newValue, ErrorTypeSymbol.UnknownResultType) 61Debug.Assert(oldValue Is ErrorTypeSymbol.UnknownResultType OrElse oldValue Is newValue)

168varType = ErrorTypeSymbol.UnknownResultType

64Private _lazyCoClassType As TypeSymbol = ErrorTypeSymbol.UnknownResultType 1926If _lazyCoClassType Is ErrorTypeSymbol.UnknownResultType Then 1928Interlocked.CompareExchange(_lazyCoClassType, Nothing, DirectCast(ErrorTypeSymbol.UnknownResultType, TypeSymbol)) 1931If _lazyCoClassType Is ErrorTypeSymbol.UnknownResultType Then 1935DirectCast(ErrorTypeSymbol.UnknownResultType, TypeSymbol)) 1940Debug.Assert(_lazyCoClassType IsNot ErrorTypeSymbol.UnknownResultType) 2220DirectCast(ErrorTypeSymbol.UnknownResultType, TypeSymbol))

356Return ErrorTypeSymbol.UnknownResultType

55If _lazySpecialTypeMembers Is Nothing OrElse _lazySpecialTypeMembers(member) Is ErrorTypeSymbol.UnknownResultType Then 60specialTypeMembers(i) = ErrorTypeSymbol.UnknownResultType 74Interlocked.CompareExchange(_lazySpecialTypeMembers(member), result, DirectCast(ErrorTypeSymbol.UnknownResultType, Symbol))

32Private _lazyExtensionAttributeConstructor As Symbol = ErrorTypeSymbol.UnknownResultType ' Not yet known. 41If _lazyExtensionAttributeConstructor Is ErrorTypeSymbol.UnknownResultType Then 122DirectCast(ErrorTypeSymbol.UnknownResultType, Symbol)) 314If _lazyWellKnownTypeMembers Is Nothing OrElse _lazyWellKnownTypeMembers(member) Is ErrorTypeSymbol.UnknownResultType Then 319wellKnownTypeMembers(i) = ErrorTypeSymbol.UnknownResultType 336Interlocked.CompareExchange(_lazyWellKnownTypeMembers(member), result, DirectCast(ErrorTypeSymbol.UnknownResultType, Symbol))

7151Dim vt2 = comp.GetWellKnownType(WellKnownType.System_ValueTuple_T2).Construct(intType, ErrorTypeSymbol.UnknownResultType) 7434Dim tupleWithoutNames = comp.CreateTupleTypeSymbol(ImmutableArray.Create(intType, ErrorTypeSymbol.UnknownResultType), Nothing)

207a(i) = ErrorTypeSymbol.UnknownResultType