Issue 5719. There are no warning for operator-() and numberic return anymore.

compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java

Index: compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java b/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
index f153e21872094a1d5b295f6dffd11987d19edc93..15da593d611dce5bdce0ce9461d0a448fe4e7753 100644
--- a/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
+++ b/compiler/javatests/com/google/dart/compiler/type/TypeAnalyzerCompilerTest.java
@@ -3,9 +3,6 @@
 // BSD-style license that can be found in the LICENSE file.
 package com.google.dart.compiler.type;
 
-import static com.google.dart.compiler.common.ErrorExpectation.assertErrors;
-import static com.google.dart.compiler.common.ErrorExpectation.errEx;
-
 import com.google.common.base.Joiner;
 import com.google.common.collect.Iterables;
 import com.google.common.collect.Lists;
@@ -57,6 +54,9 @@ import com.google.dart.compiler.resolver.NodeElement;
 import com.google.dart.compiler.resolver.ResolverErrorCode;
 import com.google.dart.compiler.resolver.TypeErrorCode;
 
+import static com.google.dart.compiler.common.ErrorExpectation.assertErrors;
+import static com.google.dart.compiler.common.ErrorExpectation.errEx;
+
 import java.io.Reader;
 import java.io.StringReader;
 import java.net.URI;
@@ -3325,37 +3325,6 @@ public class TypeAnalyzerCompilerTest extends CompilerTestCase {
   }
 
   /**
-   * It is a static warning if the return type of the user-declared "operator -" is explicitly
-   * declared and not a numerical type.
-   * <p>
-   * http://code.google.com/p/dart/issues/detail?id=3224
-   */
-  public void test_negateOperatorType() throws Exception {
-    AnalyzeLibraryResult libraryResult = analyzeLibrary(
-        "// filler filler filler filler filler filler filler filler filler filler",
-        "class A {",
-        "  num operator -() {}",
-        "}",
-        "class B {",
-        "  int operator -() {}",
-        "}",
-        "class C {",
-        "  double operator -() {}",
-        "}",
-        "class D {",
-        "  String operator -() {}",
-        "}",
-        "class E {",
-        "  Object operator -() {}",
-        "}",
-        "");
-    assertErrors(
-        libraryResult.getErrors(),
-        errEx(TypeErrorCode.OPERATOR_NEGATE_NUM_RETURN_TYPE, 12, 3, 6),
-        errEx(TypeErrorCode.OPERATOR_NEGATE_NUM_RETURN_TYPE, 15, 3, 6));
-  }
-
-  /**
    * It is a static warning if the return type of the user-declared operator == is explicitly
    * declared and not bool.
    */