JVM: Fix constant folding for unsigned values

compiler/testData/codegen/box/constants/foldingBinaryOpsUnsigned.kt

@@ -1,5 +1,4 @@
 // WITH_RUNTIME
-// IGNORE_BACKEND: JVM
 // IGNORE_BACKEND: WASM
 
 val a = "INT " + 0x8fffffffU

compiler/testData/codegen/box/constants/foldingBinaryOpsUnsignedConst.kt

@@ -0,0 +1,42 @@
+// WITH_RUNTIME
+// IGNORE_BACKEND_FIR: JVM_IR
+// IGNORE_BACKEND: WASM
+
+const val a = "INT " + 0x8fffffffU
+const val b = "BYTE " + 0x8ffU
+const val c = "LONG " + 0xffff_ffff_ffffU
+
+const val uint = 0x8fffffffU
+const val ubyte = 0x8ffU
+const val ulong = 0xffff_ffff_ffffU
+
+const val aa = "INT " + uint
+const val bb = "BYTE " + ubyte
+const val cc = "LONG " + ulong
+
+
+fun box(): String {
+    if (a != "INT 2415919103") {
+        return "FAIL 0: $a"
+    }
+    if (aa != "INT 2415919103") {
+        return "FAIL 1: $aa"
+    }
+
+    if (b != "BYTE 2303") {
+        return "FAIL 2: $b"
+    }
+    if (bb != "BYTE 2303") {
+        return "FAIL 3: $bb"
+    }
+
+
+    if (c != "LONG 281474976710655") {
+        return "FAIL 4: $c"
+    }
+    if (cc != "LONG 281474976710655") {
+        return "FAIL 5: $cc"
+    }
+
+    return "OK"
+}