contentEquals
Returns true if this string is equal to the contents of the specified CharSequence, false otherwise.
Note that if the CharSequence argument is a StringBuffer then the comparison may be performed in a synchronized block that acquires that StringBuffer's monitor.
Since Kotlin
1.0Returns true if this string is equal to the contents of the specified StringBuffer, false otherwise.
This function compares this string and the specified StringBuffer in a synchronized block that acquires that StringBuffer's monitor.