Issue 5052. Analyzer should treat assert as a keyword

compiler/java/com/google/dart/compiler/ast/DartAssertStatement.java

Index: compiler/java/com/google/dart/compiler/ast/DartAssertStatement.java
diff --git a/compiler/java/com/google/dart/compiler/ast/DartAssertStatement.java b/compiler/java/com/google/dart/compiler/ast/DartAssertStatement.java
new file mode 100644
index 0000000000000000000000000000000000000000..42d6a495dcd7f39773a359c8d36b9a21e1adfd8d
--- /dev/null
+++ b/compiler/java/com/google/dart/compiler/ast/DartAssertStatement.java
@@ -0,0 +1,31 @@
+// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.google.dart.compiler.ast;
+
+/**
+ * Represents a Dart 'break' statement.

[Brian Wilkerson, 2012/09/19 13:09:32]

"break" --> "assert"

+ */
+public class DartAssertStatement extends DartStatement {
+
+  private final DartExpression condition;
+
+  public DartAssertStatement(DartExpression condition) {
+    this.condition = becomeParentOf(condition);
+  }
+
+  public DartExpression getCondition() {
+    return condition;
+  }
+
+  @Override
+  public void visitChildren(ASTVisitor<?> visitor) {
+    safelyVisitChild(condition, visitor);
+  }
+
+  @Override
+  public <R> R accept(ASTVisitor<R> visitor) {
+    return visitor.visitAssertStatement(this);
+  }
+}