Stop tower resolve in K2 in more similar manner with K1

compiler/testData/diagnostics/tests/callableReference/correctCandidateWithCompatibilityForSeveralCandidates.fir.kt

@@ -15,7 +15,7 @@ object Scope {
         fun test() {
             // Despite the fact ::bar is resolved with compatibility warning, it's important not to propagate it to the outer call
             val result = <!DEBUG_INFO_CALL("fqName: Scope.foo; typeCall: function")!>foo(::bar)<!>
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>result<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Unit")!>result<!>
         }
     }
 }

compiler/testData/diagnostics/tests/callableReference/referenceAdaptationCompatibility.fir.kt

@@ -9,7 +9,7 @@ object Test1 {
 
         fun test() {
             val result = foo(::bar)
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>result<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>result<!>
         }
     }
 }
@@ -36,7 +36,7 @@ object Test3 {
 
         fun test() {
             val result = foo(::bar)
-            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.String")!>result<!>
+            <!DEBUG_INFO_EXPRESSION_TYPE("kotlin.Int")!>result<!>
         }
     }
 }