This PR splits the PrimaryExpression grammar rule into ParenthesisExpression, IdentifierReference, and Constant.
It also renames Variable to Identifier.
PrimaryExpression was previously responsible for representing parenthesized expressions, identifier references, constant values and compound string literals. Each of these has now been promoted to a separate class, with PrimaryExpression as their super type.
This PR splits the
PrimaryExpressiongrammar rule intoParenthesisExpression,IdentifierReference, andConstant. It also renamesVariabletoIdentifier.PrimaryExpressionwas previously responsible for representing parenthesized expressions, identifier references, constant values and compound string literals. Each of these has now been promoted to a separate class, withPrimaryExpressionas their super type.