Enable props/ops/object tests and improve unary/incdec

lynglib/src/commonTest/kotlin/ObjectExpressionTest.kt

@@ -6,7 +6,6 @@ import kotlin.test.Ignore
 import kotlin.test.Test
 import kotlin.test.assertFailsWith
 
-@Ignore("TODO(bytecode-only): uses fallback")
 class ObjectExpressionTest {
 
     @Test

lynglib/src/commonTest/kotlin/net/sergeych/lyng/OperatorOverloadingTest.kt

@@ -4,7 +4,6 @@ import kotlinx.coroutines.test.runTest
 import kotlin.test.Ignore
 import kotlin.test.Test
 
-@Ignore("TODO(bytecode-only): uses fallback")
 class OperatorOverloadingTest {
     @Test
     fun testBinaryOverloading() = runTest {

lynglib/src/commonTest/kotlin/net/sergeych/lyng/PropsTest.kt

@@ -4,7 +4,6 @@ import kotlinx.coroutines.test.runTest
 import kotlin.test.Ignore
 import kotlin.test.Test
 
-@Ignore("TODO(bytecode-only): uses fallback")
 class PropsTest {
 
     @Test

lynglib/src/commonTest/kotlin/net/sergeych/lyng/TransientTest.kt

@@ -30,7 +30,6 @@ import kotlin.test.assertEquals
 import kotlin.test.assertFalse
 import kotlin.test.assertNotNull
 
-@Ignore("TODO(bytecode-only): uses fallback")
 class TransientTest {
 
     @Test