Fix provided properties access generation

The presense of accessors in the descriptor led to the wrong code
generation in some cases.
#KT-43176 fixed

compiler/testData/codegen/customScript/providedPropsInLambda.kts

@@ -0,0 +1,10 @@
+
+// KOTLIN_SCRIPT_DEFINITION: org.jetbrains.kotlin.codegen.TestScriptWithSimpleEnvVars
+
+// envVar: stringVar1=abracadabra
+
+fun foo(body: () -> String): String = body()
+
+val res = foo { stringVar1.drop(5) }
+
+// expected: res=adabra