guava type migration: support of Predicates.alwaysTrue/alwaysFalse/notNull/isNull/equalTo IDEA-148823

java/typeMigration/testData/inspections/guava/predicates4.java

@@ -0,0 +1,17 @@
+import com.google.common.base.Predicate;
+import com.google.common.base.Predicates;
+import com.google.common.collect.FluentIterable;
+
+import java.util.ArrayList;
+
+class Main {
+  Predicate<String> m() {
+    Predicate<Object> qwe = Predicates.alwaysTrue();
+
+    Predicate<String> p1 = Predicates.or(Predicates.alwaysFalse(), Predicates.equalTo("asd"));
+
+    Predicate<String> not = Predicates.not(Predicates.notNull());
+    return not;
+
+  }
+}

java/typeMigration/testData/inspections/guava/predicates4_after.java

@@ -0,0 +1,14 @@
+import java.util.Objects;
+import java.util.function.Predicate;
+
+class Main {
+  Predicate<String> m() {
+    Predicate<Object> qwe = o -> true;
+
+    Predicate<String> p1 = ((Predicate<String>) s -> false).or(s -> Objects.equals(s, "asd"));
+
+    Predicate<String> not = ((Predicate<String>) s -> s != null).negate();
+    return not;
+
+  }
+}