Introduce Common StringBuilder.append/insert(Byte/Short) extensions #KT-63341

libraries/stdlib/src/kotlin/text/StringBuilder.kt

@@ -324,6 +324,46 @@ public expect class StringBuilder : Appendable, CharSequence {
 }
 
 
+/**
+ * Appends the string representation of the specified byte [value] to this string builder and returns this instance.
+ *
+ * The overall effect is exactly as if the [value] were converted to a string by the `value.toString()` method,
+ * and then that string was appended to this string builder.
+ */
+@SinceKotlin("1.9")
+public expect fun StringBuilder.append(value: Byte): StringBuilder
+
+/**
+ * Appends the string representation of the specified short [value] to this string builder and returns this instance.
+ *
+ * The overall effect is exactly as if the [value] were converted to a string by the `value.toString()` method,
+ * and then that string was appended to this string builder.
+ */
+@SinceKotlin("1.9")
+public expect fun StringBuilder.append(value: Short): StringBuilder
+
+/**
+ * Inserts the string representation of the specified byte [value] into this string builder at the specified [index] and returns this instance.
+ *
+ * The overall effect is exactly as if the [value] were converted to a string by the `value.toString()` method,
+ * and then that string was inserted into this string builder at the specified [index].
+ *
+ * @throws IndexOutOfBoundsException if [index] is less than zero or greater than the length of this string builder.
+ */
+@SinceKotlin("1.9")
+public expect fun StringBuilder.insert(index: Int, value: Byte): StringBuilder
+
+/**
+ * Inserts the string representation of the specified short [value] into this string builder at the specified [index] and returns this instance.
+ *
+ * The overall effect is exactly as if the [value] were converted to a string by the `value.toString()` method,
+ * and then that string was inserted into this string builder at the specified [index].
+ *
+ * @throws IndexOutOfBoundsException if [index] is less than zero or greater than the length of this string builder.
+ */
+@SinceKotlin("1.9")
+public expect fun StringBuilder.insert(index: Int, value: Short): StringBuilder
+
 /**
  * Clears the content of this string builder making it empty and returns this instance.
  *