fix: apply review feedback

Author: rajanarahul93

lib/node_modules/@stdlib/assert/has-bigint-support/lib/main.js

@@ -20,7 +20,12 @@
 
 // MODULES //
 
-var BigInt = require( '@stdlib/bigint/ctor' );
+var getGlobal = require( '@stdlib/utils/global' );
+
+
+// VARIABLES //
+
+var Global = getGlobal();
 
 
 // MAIN //
@@ -35,7 +40,12 @@ var BigInt = require( '@stdlib/bigint/ctor' );
 * // returns <boolean>
 */
 function hasBigIntSupport() {
-	return ( BigInt !== null );
+	return (
+		typeof Global.BigInt === 'function' &&
+		typeof BigInt === 'function' && // eslint-disable-line stdlib/require-globals, stdlib/no-builtin-big-int
+		typeof Global.BigInt( '1' ) === 'bigint' &&
+		typeof BigInt( '1' ) === 'bigint' // eslint-disable-line stdlib/require-globals, no-undef, stdlib/no-builtin-big-int
+	);
 }