Add more tests for -Xassertions=jvm corner cases

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

@@ -0,0 +1,26 @@
+// TARGET_BACKEND: JVM
+// KOTLIN_CONFIGURATION_FLAGS: ASSERTIONS_MODE=jvm
+// WITH_RUNTIME
+
+// Reusing the $assertionsDisabled field in the Outer class might seem like a good idea,
+// but it would result in an error in this case.
+class Outer {
+    companion object {
+        init { error("") }
+    }
+
+    init { assert(true) }
+
+    class Inner {
+        init { assert(true) }
+    }
+}
+
+fun box(): String {
+    try {
+        Outer.Inner()
+    } catch (e: Throwable) {
+        return "Fail"
+    }
+    return "OK"
+}