[ObjCInterop] Implement @ObjCSignatureOverride

This annotation leads to conflicting overloads error supression,
in case where several function with the same argument types,
but different argument names are inherited from ObjC class.

We need to implement it in both K1 and K2 to make the IDE experience
better.
But the annotation itself wouldn't be available in K1.

    ^KT-61323

compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirNativeDiagnosticsList.kt

@@ -103,5 +103,9 @@ object NATIVE_DIAGNOSTICS_LIST : DiagnosticList("FirNativeErrors") {
         val CONSTRUCTOR_MATCHES_SEVERAL_SUPER_CONSTRUCTORS by error<KtElement>() {
             parameter<FqName>("annotation")
         }
+        val CONFLICTING_OBJC_OVERLOADS by error<PsiElement>() {
+            parameter<Collection<Symbol>>("conflictingOverloads")
+        }
+        val INAPPLICABLE_OBJC_OVERRIDE by error<PsiElement>()
     }
 }