Issue 3308. Support for operator equals

compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java

Index: compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java b/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
index b04a4f277380f2fc59dbd4e2bd0089ff50181f61..28801df0f94b703cf43be2422658cc2131fc793e 100644
--- a/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
+++ b/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
@@ -5,6 +5,7 @@ package com.google.dart.compiler.parser;
 
 import com.google.common.base.Joiner;
 import com.google.dart.compiler.CompilerTestCase;
+import com.google.dart.compiler.ast.DartClass;
 import com.google.dart.compiler.ast.DartIdentifier;
 import com.google.dart.compiler.ast.DartMethodDefinition;
 import com.google.dart.compiler.ast.DartNode;
@@ -698,6 +699,21 @@ public class NegativeParserTest extends CompilerTestCase {
         "}",
         ""));
   }
+  
+  /**
+   * We can parse operator "equals" declaration.
+   */
+  public void test_operator_equals() {
+    DartParserRunner runner = parseExpectErrors(Joiner.on("\n").join(
+        "// filler filler filler filler filler filler filler filler filler filler",
+        "class A {",
+        "  operator equals(other) => false;",
+        "}",
+        ""));
+    DartClass clazz = (DartClass) runner.getDartUnit().getTopLevelNodes().get(0);
+    DartMethodDefinition method = (DartMethodDefinition) clazz.getMembers().get(0);
+    assertTrue(method.getModifiers().isOperator());
+  }
 
   /**
    * "native" can be specified only for classes.