FIR: don't report EQUALITY_NOT_APPLICABLE for classes from java.*

Workaround for KT-48113

compiler/fir/analysis-tests/testData/resolveWithStdlib/intellij/IntersectionWithJavaString.fir.txt

@@ -0,0 +1,9 @@
+FILE: IntersectionWithJavaString.kt
+    public final fun collapse(path: R|kotlin/String|): R|kotlin/Unit| {
+        lval result: R|ft<kotlin/String, kotlin/String?>| = (R|<local>/path| as R|java/lang/String|).R|java/lang/String.replace|(String(123), String(456))
+        when () {
+            !==(R|<local>/result|, R|<local>/path|) ->  {
+            }
+        }
+
+    }

compiler/fir/analysis-tests/testData/resolveWithStdlib/intellij/IntersectionWithJavaString.kt

@@ -0,0 +1,5 @@
+// FULL_JDK
+fun collapse(path: String) {
+    val result = (path as java.lang.String).replace("123", "456")
+    if (<!EQUALITY_NOT_APPLICABLE_WARNING!>result !== path<!>) {}
+}