protected void consumeCallExpressionWithSimpleName() {
	FieldReference fr =
			new FieldReference(
				this.identifierStack[this.identifierPtr],
				this.identifierPositionStack[this.identifierPtr--]);
		this.identifierLengthPtr--;
			//optimize push/pop
		fr.receiver = this.expressionStack[this.expressionPtr];
		//fieldreference begins at the receiver
		fr.sourceStart = fr.receiver.sourceStart;
		this.expressionStack[this.expressionPtr] = fr;
}