[FIR] KT-37009: Fix loss of bound smart-cast due to synthetic removal

compiler/testData/diagnostics/tests/smartCasts/castchecks/basicOff.fir.kt

@@ -19,8 +19,8 @@ fun g(a: SomeClass?) {
     val b = (a as? SomeSubClass)?.foo
     if (b != null) {
         // 'a' can be cast to SomeSubClass
-        a.<!INAPPLICABLE_CANDIDATE!>hashCode<!>()
-        a.<!UNRESOLVED_REFERENCE!>foo<!>
+        a.hashCode()
+        a.foo
         (a as? SomeSubClass).<!INAPPLICABLE_CANDIDATE!>foo<!>
         (a as SomeSubClass).foo
     }

compiler/testData/diagnostics/tests/smartCasts/castchecks/basicOn.fir.kt

@@ -19,8 +19,8 @@ fun g(a: SomeClass?) {
     val b = (a as? SomeSubClass)?.foo
     if (b != null) {
         // 'a' can be cast to SomeSubClass
-        a.<!INAPPLICABLE_CANDIDATE!>hashCode<!>()
-        a.<!UNRESOLVED_REFERENCE!>foo<!>
+        a.hashCode()
+        a.foo
         (a as? SomeSubClass).<!INAPPLICABLE_CANDIDATE!>foo<!>
         (a as SomeSubClass).foo
     }

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

@@ -27,8 +27,8 @@ fun g(a: SomeClass?) {
     c = Impl
     if (c != null) {
         // 'a' cannot be cast to SomeSubClass
-        a.hashCode()
-        a.foo
+        a.<!INAPPLICABLE_CANDIDATE!>hashCode<!>()
+        a.<!UNRESOLVED_REFERENCE!>foo<!>
         (a as? SomeSubClass).<!INAPPLICABLE_CANDIDATE!>foo<!>
         c.hashCode()
         c.foo

compiler/testData/diagnostics/tests/smartCasts/safecalls/safeAccessReceiverNotNull.fir.kt

@@ -63,7 +63,7 @@ fun kt4565_2(a: SomeClass?) {
     }
     val extra = (a as? SubClass)?.extra
     if (extra != null) {
-        a.<!UNRESOLVED_REFERENCE!>extra<!>.<!UNRESOLVED_REFERENCE!>hashCode<!>()
+        a.extra.hashCode()
     }
 }