Fix crash caused by passing null SyntaxNode when creating Literal bound node

src/Compilers/VisualBasic/Portable/BoundTree/Statement.vb

@@ -645,7 +645,7 @@ Namespace Microsoft.CodeAnalysis.VisualBasic
 
                                 Dim stepValue As IOperation = New Temporary(SyntheticLocalKind.ForLoopStepValue, BoundFor, BoundFor.StepValue)
                                 Dim stepRelationalCode As BinaryOperationKind = DeriveBinaryOperationKind(BinaryOperatorKind.GreaterThanOrEqual, BoundFor.StepValue)
-                                Dim stepCondition As IOperation = New Binary(stepRelationalCode, stepValue, New BoundLiteral(Nothing, Semantics.Expression.SynthesizeNumeric(stepValue.Type, 0), BoundFor.StepValue.Type), booleanType, BoundFor.StepValue.Syntax)
+                                Dim stepCondition As IOperation = New Binary(stepRelationalCode, stepValue, New BoundLiteral(BoundFor.StepValue.Syntax, Semantics.Expression.SynthesizeNumeric(stepValue.Type, 0), BoundFor.StepValue.Type), booleanType, BoundFor.StepValue.Syntax)
 
                                 Dim positiveStepRelationalCode As BinaryOperationKind = DeriveBinaryOperationKind(BinaryOperatorKind.LessThanOrEqual, controlVariable)
                                 Dim positiveStepCondition As IOperation = New Binary(positiveStepRelationalCode, controlVariable, limitValue, booleanType, limitValue.Syntax)