JVM, JVM IR: Fix assertion status for regenerated anonymous objects

We always set the $assertionsDisabled field based on the top-level
enclosing class. This means that for anonymous objects we have to
rewrite the call to Class.desiredAssertionStatus.

compiler/testData/codegen/bytecodeText/assert/jvmCrossinlineAssertInLambda.kt

@@ -1,6 +1,3 @@
-// This test is ignored until KT-36794 is fixed
-// IGNORE_BACKEND: JVM
-// IGNORE_BACKEND: JVM_IR
 // KOTLIN_CONFIGURATION_FLAGS: ASSERTIONS_MODE=jvm
 
 inline fun inlineMe(crossinline c : () -> Unit) = {