KT-39532 Support intention to convert reference to lambda and vice versa for adapted references (#3495)

* Convert lambda to reference: support a function which has default parameters/unit return type/suspendability

#KT-39532 Fixed

idea/testData/intentions/convertLambdaToReference/defaultArgument2.kt

@@ -0,0 +1,5 @@
+// IS_APPLICABLE: false
+
+fun foo(z: Int, y: Int = 0) = y + z
+
+val x = { arg: Int <caret>-> foo(arg) }