anchor.diff:  };
   final someValidIntegerLiterals = {
     ...someValidDecIntegerLiterals,
  -  ...someValidHexIntegerLiterals,
  -  ...someValidHexIntegerLiterals,
  +  // Hexadecimal and binary are completely removed for performance reasons.
   };
   final validIntegerLiterals = {
     ...validDecIntegerLiterals,
     ...validHexIntegerLiterals,
  -  ...validHexIntegerLiterals,
  +  ...validBinIntegerLiterals,
   };
   final someValidBooleanLiterals = {
     'true': true,
  
positive.code: 
      group('invocation', () {
        group('positional', () {
          forPrimitives(tester: (targetSource, targetFactory) {
            group('0 args', () {
              testExpressionParser(
                '$targetSource()',
                expression: InvocationExpression(
  
negative.code:               ),
              );
            });
          });
  
          group('1 arg', () {
            forPrimitives(tester: (targetSource, targetFactory) {
              forPrimitives(tester: (arg1Source, arg1Factory) {
                testExpressionParser(
                  '$targetSource($arg1Source)',
                  expression: InvocationExpression(
  