Set resolved type for lambdas properly during FIR resolve

Partially done by semoro

compiler/fir/resolve/testData/resolve/cast.kt

@@ -0,0 +1,7 @@
+val x = 1
+val y = 2 as Any
+
+val f = fun() = 3 as Any
+val g = {}
+val h: (String) -> Boolean = { _ -> false }
+val hError = { _ -> true }

compiler/fir/resolve/testData/resolve/cast.txt

@@ -0,0 +1,25 @@
+FILE: cast.kt
+    public final val x: R|kotlin/Int| = Int(1)
+        public get(): R|kotlin/Int|
+    public final val y: R|kotlin/Any| = (Int(2) as R|kotlin/Any|)
+        public get(): R|kotlin/Any|
+    public final val f: R|kotlin/Function0<kotlin/Any>| = fun <anonymous>(): R|kotlin/Any| {
+        ^ (Int(3) as R|kotlin/Any|)
+    }
+
+        public get(): R|kotlin/Function0<kotlin/Any>|
+    public final val g: R|kotlin/Function0<kotlin/Unit>| = fun <anonymous>(): R|kotlin/Unit| {
+        Unit
+    }
+
+        public get(): R|kotlin/Function0<kotlin/Unit>|
+    public final val h: R|kotlin/Function1<kotlin/String, kotlin/Boolean>| = fun R|kotlin/Function1<kotlin/String, kotlin/Boolean>|.<anonymous>(_: R|kotlin/String|): R|kotlin/Function1<kotlin/String, kotlin/Boolean>| {
+        Boolean(false)
+    }
+
+        public get(): R|kotlin/Function1<kotlin/String, kotlin/Boolean>|
+    public final val hError: R|kotlin/Function1<class error: No type for parameter, kotlin/Boolean>| = fun <anonymous>(_: R|class error: No type for parameter|): R|kotlin/Boolean| {
+        Boolean(true)
+    }
+
+        public get(): R|kotlin/Function1<class error: No type for parameter, kotlin/Boolean>|

compiler/fir/resolve/testData/resolve/stdlib/functionX.txt

@@ -4,7 +4,7 @@ FILE: functionX.kt
     }
 
         public get(): R|kotlin/jvm/functions/Function0<kotlin/Int>|
-    public final val y: R|kotlin/Function1<kotlin/String, kotlin/String>| = fun R|kotlin/Function1<kotlin/String, kotlin/String>|.<anonymous>(): R|kotlin/Function1<kotlin/String, kotlin/String>| {
+    public final val y: R|kotlin/Function1<kotlin/String, kotlin/String>| = fun R|kotlin/Function1<kotlin/String, kotlin/String>|.<anonymous>(it: R|kotlin/String|): R|kotlin/Function1<kotlin/String, kotlin/String>| {
         <Unresolved name: it>#
     }