[LL API] Fix code generation to access private property from evaluator

Lowering asks whether to generate getter/setter call only when it should
be present. It means the code define explicit getter or setter.
And it seems correct to use it instead of trying direct field access.

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirCompilerFacility.kt

@@ -375,6 +375,16 @@ internal class KtFirCompilerFacility(
     ) : StubGeneratorExtensions(), JvmGeneratorExtensions by delegate {
         override val rawTypeAnnotationConstructor: IrConstructor?
             get() = delegate.rawTypeAnnotationConstructor
+
+        /**
+         * This method is used from [org.jetbrains.kotlin.backend.jvm.lower.ReflectiveAccessLowering.visitCall]
+         * (via generateReflectiveAccessForGetter) and it is called for the private access member lowered to the getter/setter call.
+         * If a private property has no getter/setter (the typical situation for simple private properties without explicitly defined
+         * getter/setter) then this method is not used at all. Instead
+         * [org.jetbrains.kotlin.backend.jvm.lower.ReflectiveAccessLowering.visitGetField] (or visitSetField) generates the access without
+         * asking.
+         */
+        override fun isAccessorWithExplicitImplementation(accessor: IrSimpleFunction) = true
     }
 
     private class CompilerFacilityFir2IrExtensions(