smart completion of method references (IDEA-123293; IDEA-123291)

java/java-tests/testData/codeInsight/completion/smartType/ExpectedReturnType-out.java

@@ -19,7 +19,7 @@ interface I {
 public class Test {
   public int m() {
     I i = s -> {
-      return s.contains();
+      return s.isEmpty();
     };
     return 0;
   }

java/java-tests/testData/codeInsight/completion/smartType/ExpectedReturnType1-out.java

@@ -18,7 +18,7 @@ interface I {
 }
 public class Test {
   public int m() {
-    I i = s -> s.contains();
+    I i = s -> s.isEmpty();
     return 0;
   }
 }

java/java-tests/testData/codeInsight/completion/smartType/FilterAmbiguity.java

@@ -0,0 +1,14 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class A {
+  {
+    List<A> s = new ArrayList<>();
+    s.stream().filter(A::<caret>);
+  }
+
+  public boolean accept(String s) {
+    return true;
+  }
+}
+

java/java-tests/testData/codeInsight/completion/smartType/FilterWrongParamsMethods-out.java

@@ -0,0 +1,18 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class A {
+  {
+    List<A> s = new ArrayList<>();
+    s.stream().filter(A::accept);
+  }
+
+  static <K> boolean accept(K k) {
+    return false;
+  }
+
+  public boolean accept1(String s) {
+    return true;
+  }
+}
+

java/java-tests/testData/codeInsight/completion/smartType/FilterWrongParamsMethods.java

@@ -0,0 +1,18 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class A {
+  {
+    List<A> s = new ArrayList<>();
+    s.stream().filter(A::<caret>);
+  }
+
+  static <K> boolean accept(K k) {
+    return false;
+  }
+
+  public boolean accept1(String s) {
+    return true;
+  }
+}
+

java/java-tests/testData/codeInsight/completion/smartType/FilteredStaticMethods-out.java

@@ -0,0 +1,14 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class A {
+  {
+    List<A> s = new ArrayList<>();
+    s.stream().filter(A::accept);
+  }
+
+  public boolean accept() {
+    return true;
+  }
+}
+

java/java-tests/testData/codeInsight/completion/smartType/FilteredStaticMethods.java

@@ -0,0 +1,14 @@
+import java.util.ArrayList;
+import java.util.List;
+
+class A {
+  {
+    List<A> s = new ArrayList<>();
+    s.stream().filter(A::<caret>);
+  }
+
+  public boolean accept() {
+    return true;
+  }
+}
+