[FIR] Implement new bound smartcast algorithm

#KT-36055 Fixed

compiler/testData/diagnostics/tests/smartCasts/variables/assignmentConversion.fir.kt

@@ -8,7 +8,7 @@ fun test1() {
     if (newC != null) {
         c = newC
     }
-    <!INAPPLICABLE_CANDIDATE!>foo<!>(c)
+    foo(c)
 }
 
 fun test2() {
@@ -19,7 +19,7 @@ fun test2() {
     if (newC is String) {
         c = newC
     }
-    <!INAPPLICABLE_CANDIDATE!>foo<!>(c)
+    foo(c)
 }
 
 fun test3() {
@@ -30,6 +30,6 @@ fun test3() {
     if (newC == null) return
     c = newC
 
-    <!INAPPLICABLE_CANDIDATE!>foo<!>(c)
+    foo(c)
 }
 

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

@@ -6,5 +6,5 @@ fun foo(x: Int, f: () -> Unit, y: Int) {}
 fun bar() {
     var x: Int?
     x = 4
-    foo(x, { x = null; x.<!UNRESOLVED_REFERENCE!>hashCode<!>() }, x)
+    foo(x, { x = null; x.<!INAPPLICABLE_CANDIDATE!>hashCode<!>() }, x)
 }

compiler/testData/diagnostics/tests/smartCasts/variables/whileWithBreak.fir.kt

@@ -13,5 +13,5 @@ fun list(start: String) {
         e = e.next()
     }
     // e can never be null but we do not know it
-    e.<!INAPPLICABLE_CANDIDATE!>hashCode<!>()
+    e.hashCode()
 }