FIR resolve: add partial support of extension lambda calls

Here we introduce ONLY_IMPLICIT_RECEIVER tower level
to support extension lambda calls on local variables,
and soften extension receiver checks to make such extensions visible & applicable.
Also here we try to map arguments twice for functional types

compiler/testData/diagnostics/tests/safeCall.fir.kt

@@ -1,7 +1,7 @@
 // !WITH_NEW_INFERENCE
 
 fun f(s: String, action: (String.() -> Unit)?) {
-    s.foo().bar().<!UNRESOLVED_REFERENCE!>action<!>()
+    s.foo().bar().<!INAPPLICABLE_CANDIDATE!>action<!>()
 }
 
 fun String.foo() = ""