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/localObject.kt

@@ -0,0 +1,156 @@
+// IGNORE_BACKEND: JS
+// KOTLIN_CONFIGURATION_FLAGS: ASSERTIONS_MODE=jvm
+// WITH_RUNTIME
+
+interface Checker {
+    fun checkTrue(): Boolean
+    fun checkFalse(): Boolean
+    fun checkTrueWithMessage(): Boolean
+    fun checkFalseWithMessage(): Boolean
+}
+
+class ShouldBeDisabled : Checker {
+    override fun checkTrue(): Boolean {
+        var hit = false
+        val l = { hit = true; true }
+
+        val local = object {
+            fun run() {
+                assert(l())
+            }
+        }
+
+        local.run()
+        return hit
+    }
+
+    override fun checkFalse(): Boolean {
+        var hit = false
+        val l = { hit = true; false }
+
+        val local = object {
+            fun run() {
+                assert(l())
+            }
+        }
+
+        local.run()
+        return hit
+    }
+
+    override fun checkTrueWithMessage(): Boolean {
+        var hit = false
+        val l = { hit = true; true }
+
+        val local = object {
+            fun run() {
+                assert(l()) { "BOOYA" }
+            }
+        }
+
+        local.run()
+        return hit
+    }
+
+    override fun checkFalseWithMessage(): Boolean {
+        var hit = false
+        val l = { hit = true; false }
+
+        val local = object {
+            fun run() {
+                assert(l()) { "BOOYA" }
+            }
+        }
+
+        local.run()
+        return hit
+    }
+}
+
+class ShouldBeEnabled : Checker {
+    override fun checkTrue(): Boolean {
+        var hit = false
+        val l = { hit = true; true }
+
+        val local = object {
+            fun run() {
+                assert(l())
+            }
+        }
+
+        local.run()
+        return hit
+    }
+
+    override fun checkFalse(): Boolean {
+        var hit = false
+        val l = { hit = true; false }
+
+        val local = object {
+            fun run() {
+                assert(l())
+            }
+        }
+
+        local.run()
+        return hit
+    }
+
+    override fun checkTrueWithMessage(): Boolean {
+        var hit = false
+        val l = { hit = true; true }
+
+        val local = object {
+            fun run() {
+                assert(l()) { "BOOYA" }
+            }
+        }
+
+        local.run()
+        return hit
+    }
+
+    override fun checkFalseWithMessage(): Boolean {
+        var hit = false
+        val l = { hit = true; false }
+
+        val local = object {
+            fun run() {
+                assert(l()) { "BOOYA" }
+            }
+        }
+
+        local.run()
+        return hit
+    }
+}
+
+fun setDesiredAssertionStatus(v: Boolean): Checker {
+    val loader = Checker::class.java.classLoader
+    loader.setDefaultAssertionStatus(v)
+    val c = loader.loadClass(if (v) "ShouldBeEnabled" else "ShouldBeDisabled")
+    return c.newInstance() as Checker
+}
+
+fun box(): String {
+    var c = setDesiredAssertionStatus(false)
+    if (c.checkTrue()) return "FAIL 0"
+    if (c.checkTrueWithMessage()) return "FAIL 1"
+    if (c.checkFalse()) return "FAIL 2"
+    if (c.checkFalseWithMessage()) return "FAIL 3"
+    c = setDesiredAssertionStatus(true)
+    if (!c.checkTrue()) return "FAIL 4"
+    if (!c.checkTrueWithMessage()) return "FAIL 5"
+    try {
+        c.checkFalse()
+        return "FAIL 6"
+    } catch (ignore: AssertionError) {
+    }
+    try {
+        c.checkFalseWithMessage()
+        return "FAIL 7"
+    } catch (ignore: AssertionError) {
+    }
+
+    return "OK"
+}