JVM_IR: use indy SAM conversions in jvmTarget 1.8+, fix bridges

KT-44278 KT-26060 KT-42621

compiler/testData/codegen/box/invokedynamic/sam/specializedGenerics/inheritedWithInt.kt

@@ -0,0 +1,17 @@
+// TARGET_BACKEND: JVM
+// JVM_TARGET: 1.8
+// SAM_CONVERSIONS: INDY
+
+fun interface GenericToAny<T> {
+    fun invoke(x: T): Any
+}
+
+fun interface GenericIntToAny : GenericToAny<Int>
+
+fun with4(fn: GenericIntToAny) = fn.invoke(4).toString()
+
+fun box(): String =
+    with4 {
+        if (it != 4) throw Exception()
+        "OK"
+    }