Implement new assert semantics in back-end

Previously, assert was just a regular function and its argument used to
be computed on each call (even if assertions are disabled on JVM).
This change adds support for 3 new behaviours of assert:
* always-enable (independently from -ea on JVM)
* always-disable (independently from -ea JVM)
* runtime/jvm (compile the calls like javac generates assert-operator)
* legacy (leave current eager semantics) - this already existed

Default behaviour is legacy for now.

The behavior is changed based on -Xassertions flag.
 #KT-7540: Fixed

compiler/testData/codegen/box/assert/jvm/interfaceAssertionsEnabled.kt

@@ -0,0 +1,62 @@
+// IGNORE_BACKEND: JS
+// KOTLIN_CONFIGURATION_FLAGS: ASSERTIONS_MODE=jvm
+// WITH_RUNTIME
+
+interface Checker {
+    fun checkTrue(): Boolean {
+        var hit = false
+        val l = { hit = true; true }
+        assert(l())
+        return hit
+    }
+
+    fun checkFalse(): Boolean {
+        var hit = false
+        val l = { hit = true; false }
+        assert(l())
+        return hit
+    }
+
+    fun checkTrueWithMessage(): Boolean {
+        var hit = false
+        val l = { hit = true; true }
+        assert(l()) { "BOOYA" }
+        return hit
+    }
+
+    fun checkFalseWithMessage(): Boolean {
+        var hit = false
+        val l = { hit = true; false }
+        assert(l()) { "BOOYA" }
+        return hit
+    }
+}
+
+class ShouldBeEnabled : Checker {}
+
+class Dummy
+
+fun enableAssertions(): Checker {
+    val loader = Dummy::class.java.classLoader
+    loader.setDefaultAssertionStatus(true)
+    val c = loader.loadClass("ShouldBeEnabled")
+    return c.newInstance() as Checker
+}
+
+fun box(): String {
+    var c = enableAssertions()
+    if (!c.checkTrue()) return "FAIL 0"
+    if (!c.checkTrueWithMessage()) return "FAIL 1"
+    try {
+        c.checkFalse()
+        return "FAIL 2"
+    } catch (ignore: AssertionError) {
+    }
+    try {
+        c.checkFalseWithMessage()
+        return "FAIL 3"
+    } catch (ignore: AssertionError) {
+    }
+
+    return "OK"
+}