presto-main/src/main/java/io/prestosql/sql/analyzer/ExpressionAnalyzer.java/ExpressionAnalyzer/inLambda
class ExpressionAnalyzer:        public static Context inLambda(Scope scope, Map<FieldId, LambdaArgumentDeclaration> fieldToLambdaArgumentDeclaration)
        {
            return new Context(scope, null, requireNonNull(fieldToLambdaArgumentDeclaration, "fieldToLambdaArgumentDeclaration is null"));
        }