KT-33119 Generate IINC for primitive types only

compiler/testData/codegen/box/inlineClasses/kt33119.kt

@@ -0,0 +1,18 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+
+inline class WrappingInt(val value: Int) {
+    operator fun inc(): WrappingInt = plus(1)
+    operator fun plus(num: Int): WrappingInt = WrappingInt((value + num) and 0xFFFF)
+}
+
+fun box(): String {
+    var x = WrappingInt(65535)
+    x++
+    if (x.value != 0) throw AssertionError("x++: ${x.value}")
+
+    var y = WrappingInt(65535)
+    ++y
+    if (y.value != 0) throw AssertionError("++y: ${y.value}")
+
+    return "OK"
+}