fix(shape): fix possible condition removal by transpiler

Condition is removed after the build, where is causing
unexpected issue.
Update condition to not be removed from the build.

Fix #1663

src/ChartInternal/internals/legend.ts

@@ -617,7 +617,7 @@ export default {
 					point = "rect";
 				}
 
-				return document.createElementNS(d3Namespaces.svg, $$.hasValidPointType(point) ? point : "use");
+				return document.createElementNS(d3Namespaces.svg, ("hasValidPointType" in $$) && $$.hasValidPointType(point) ? point : "use");
 			})
 				.attr("class", CLASS.legendItemPoint)
 				.style("fill", d => $$.color(d))

src/ChartInternal/shape/shape.ts

@@ -306,7 +306,7 @@ export default {
 
 		if (!$$.isTargetToShow(d.id)) {
 			isWithin = false;
-		} else if ($$.hasValidPointType && $$.hasValidPointType(that.nodeName)) {
+		} else if (("hasValidPointType" in $$) && $$.hasValidPointType(that.nodeName)) {
 			isWithin = $$.isStepType(d) ?
 				$$.isWithinStep(that, $$.getYScaleById(d.id)(d.value)) :
 				$$.isWithinCircle(that, $$.isBubbleType(d) ? $$.pointSelectR(d) * 1.5 : 0);

test/esm/bar-spec.ts

@@ -8,7 +8,6 @@ import {expect} from "chai";
 import sinon from "sinon";
 import bb, {bar} from "../../src/index.esm";
 import util from "../assets/util";
-import CLASS from "../../src/config/classes";
 
 describe("ESM bar", function() {
     let chart;
@@ -40,4 +39,16 @@ describe("ESM bar", function() {
 
         expect(spy.calledOnce).to.be.true;
     });
+
+    it("set options: tooltip.grouped=false", () => {
+        args.tooltip = {
+            grouped: false
+        };
+    });
+
+    it("should not throw error", () => {
+        chart.tooltip.show({x: 1});
+
+        expect(true).to.be.ok;
+    });
 });