[FIR] Check for isFun flag in SAM resolution

compiler/testData/diagnostics/tests/funInterface/funIsNotInheritedFromBaseInterface.fir.kt

@@ -14,6 +14,6 @@ fun takeWithFun(a: WithFun) {}
 
 fun test() {
     takeBase {}
-    takeWithoutFun({})
+    <!INAPPLICABLE_CANDIDATE!>takeWithoutFun<!>({})
     takeWithFun {}
 }

compiler/testData/diagnostics/tests/syntheticExtensions/samAdapters/Simple.fir.kt

@@ -16,7 +16,7 @@ fun foo(javaClass: JavaClass, kotlinClass: KotlinClass) {
         bar()
     }
 
-    javaClass.doSomething2 {
+    javaClass.<!INAPPLICABLE_CANDIDATE!>doSomething2<!> {
         bar()
     }
 }