[FIR] Fix translation of invokes & add return expressions for lambdas

* fixed NoSuchMethod caused by mismatched signatures of the "invoke" method generated for lambda arguments
* added test cases in invoke.kt for KFunction and anonymous functions
* added a transformer to wrap the last expression in the bodies of lambdas with return

compiler/testData/codegen/box/properties/fieldInsideLambda.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 val my: String = "O"
     get() = { field }() + "K"
 

compiler/testData/codegen/box/properties/kt1892.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 val Int.ext: () -> Int get() = { 5 }
 val Long.ext: Long get() = 4.ext().toLong()  //(c.kt:4)
 val y: Long get() = 10L.ext

compiler/testData/codegen/box/properties/lateinit/local/capturedLocalLateinit.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 fun runNoInline(f: () -> Unit) = f()
 
 fun box(): String {