return left;
}
// 11.9 Equality Expression
private ParseTree parseEquality(Expression expressionIn) {
SourcePosition start = getTreeStartLocation();
ParseTree left = parseRelational(expressionIn);
while (peekEqualityOperator()){
Token operator = nextToken();
ParseTree right = parseRelational(expressionIn);
left = new BinaryOperatorTree(getTreeLocation(start), left, operator, right);