Fix for KT-12125: Wrong increment/decrement on Byte/Char/Short.MAX_VALUE/MIN_VALUE

#KT-12125 Fixed

compiler/testData/codegen/box/intrinsics/kt12125_2.kt

@@ -0,0 +1,16 @@
+fun box(): String {
+    var aByte: Byte? = 0
+    var bByte: Byte = 0
+
+    if (aByte != null) aByte--
+    bByte--
+    if (aByte != bByte) return "Failed post-decrement Byte: $aByte != $bByte"
+
+    if (aByte != null) aByte++
+    bByte++
+    if (aByte != bByte) return "Failed post-increment Byte: $aByte != $bByte"
+
+    aByte = null
+
+    return "OK"
+}