Allow unsigned integers overflow values of corresponding signed numbers

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

@@ -0,0 +1,10 @@
+// !LANGUAGE: +InlineClasses
+// !SKIP_METADATA_VERSION_CHECK
+// WITH_UNSIGNED
+
+fun box(): String {
+    val u1: UByte = 255u
+    if (u1.toByte().toInt() != -1) return "fail"
+
+    return "OK"
+}

compiler/testData/diagnostics/testsWithUnsignedTypes/unsignedLiteralsOverflowSignedBorder.kt

@@ -0,0 +1,25 @@
+// !LANGUAGE: +InlineClasses
+// !SKIP_METADATA_VERSION_CHECK
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+const val u1: UByte = 0xFFu
+const val u2: UShort = 0xFFFFu
+const val u3: UInt = 0xFFFF_FFFFu
+const val u4: ULong = 0xFFFF_FFFF_FFFF_FFFFu
+const val u5: ULong = 18446744073709551615u
+
+const val u6 = 0xFFFF_FFFF_FFFF_FFFFu
+const val u7 = 18446744073709551615u
+
+val u8: Comparable<*> = 0xFFFF_FFFF_FFFF_FFFFu
+
+fun takeUByte(ubyte: UByte) {}
+
+fun test() {
+    takeUByte(200u)
+    takeUByte(255u)
+    takeUByte(0xFFu)
+}
+
+val s1: UByte = <!CONSTANT_EXPECTED_TYPE_MISMATCH!>256u<!>
+val s2 = <!INT_LITERAL_OUT_OF_RANGE!>18446744073709551616u<!>

compiler/testData/diagnostics/testsWithUnsignedTypes/unsignedLiteralsOverflowSignedBorder.txt

@@ -0,0 +1,14 @@
+package
+
+public val s1: kotlin.UByte = 256.toUInt()
+public val s2: kotlin.Int
+public const val u1: kotlin.UByte = -1.toUByte()
+public const val u2: kotlin.UShort = -1.toUShort()
+public const val u3: kotlin.UInt = -1.toUInt()
+public const val u4: kotlin.ULong = -1.toULong()
+public const val u5: kotlin.ULong = -1.toULong()
+public const val u6: kotlin.ULong = -1.toULong()
+public const val u7: kotlin.ULong = -1.toULong()
+public val u8: kotlin.Comparable<*>
+public fun takeUByte(/*0*/ ubyte: kotlin.UByte): kotlin.Unit
+public fun test(): kotlin.Unit