Allow "Convert 'compareTo()' expression to 'equals()' call" intention in more cases

java/java-tests/testData/codeInsight/convertCompareToToEquals/noQualifier.java

@@ -0,0 +1,9 @@
+class X implements Comparable<X> {
+  boolean m(X x) {
+    return <caret>compareTo(x) == ((int)0.0);
+  }
+
+  public int compareTo(X x) {
+    return 0;
+  }
+}

java/java-tests/testData/codeInsight/convertCompareToToEquals/noQualifier_after.java

@@ -0,0 +1,9 @@
+class X implements Comparable<X> {
+  boolean m(X x) {
+    return equals(x);
+  }
+
+  public int compareTo(X x) {
+    return 0;
+  }
+}