method return type fix: when changing class params take into account super substitutor (IDEA-98145)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/afterChangeClassTypeParams.java

@@ -0,0 +1,10 @@
+// "Make 'doin' return 'int'" "true"
+abstract class AsyncTask<A, B, C> {
+    abstract C doin(A... a);
+}
+class AAsync extends AsyncTask<String,Integer,Integer> {
+    @Override
+    Integer doin(String... a) {
+        return 1;
+    }
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/methodReturn/beforeChangeClassTypeParams.java

@@ -0,0 +1,10 @@
+// "Make 'doin' return 'int'" "true"
+abstract class AsyncTask<A, B, C> {
+    abstract C doin(A... a);
+}
+class AAsync extends AsyncTask<String, Integer, Long> {
+    @Override
+    Long doin(String... a) {
+        return <caret>1;
+    }
+}