KT-32368 Rework Inline hints settings // migrate tests for lambdas

KotlinLambdasHintsProvider which in now responsible for lambda related
hints is not compatible with the existing LambdaReturnValueHintsTest.
Because of that tests were migrated to the new infrastructure.

idea/testData/codeInsight/hints/lambda/Elvis.kt

@@ -0,0 +1,7 @@
+// MODE: return
+fun foo() {
+    run {
+        val length: Int? = null
+        length ?: 0<# ^run #>
+    }
+}