Preliminary declaration visitor for estimating local variable's predictability for smart casts

Predictability estimation algorithm is completely new, but backward compatibility should present.
A large set of tests. Some updated tests.
Smart casts allowed for captured variables if they are not modified in closure #KT-9051 Fixed
Also #KT-8643 Fixed
Also #KT-7976 Fixed
Correct handling of lambda arguments in functions #KT-9143 Fixed

compiler/testData/diagnostics/tests/smartCasts/variables/lambdaBetweenArguments.kt

@@ -0,0 +1,9 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+fun foo(x: Int, f: () -> Unit, y: Int) {}
+
+fun bar() {
+    var x: Int?
+    x = 4
+    foo(<!DEBUG_INFO_SMARTCAST!>x<!>, { x = null; x<!UNSAFE_CALL!>.<!>hashCode() }, <!SMARTCAST_IMPOSSIBLE!>x<!>)
+}