FIR: report UNSAFE_CALL on dot when possible

compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/TypeAnnotation.fir.kt

@@ -1,13 +0,0 @@
-// FILE: KotlinFile.kt
-fun foo(javaClass: JavaClass) {
-    javaClass.getSomething().<!UNSAFE_CALL!>length<!>
-    javaClass.something.<!UNSAFE_CALL!>length<!>
-}
-
-// FILE: JavaClass.java
-import org.jetbrains.annotations.*;
-
-public class JavaClass {
-    @Nullable
-    public String getSomething() { return null; }
-}

compiler/testData/diagnostics/tests/syntheticExtensions/javaProperties/TypeAnnotation.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // FILE: KotlinFile.kt
 fun foo(javaClass: JavaClass) {
     javaClass.getSomething()<!UNSAFE_CALL!>.<!>length