'Split && condition' quick assist.

editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/dom/ASTNodes.java

Index: editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/dom/ASTNodes.java
diff --git a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/dom/ASTNodes.java b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/dom/ASTNodes.java
index d591cbfef7e79f768f453db7fb78bd76f6c29532..e2369e4b7aa969dae177509dfb7d09f2e2f46090 100644
--- a/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/dom/ASTNodes.java
+++ b/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/internal/corext/dom/ASTNodes.java
@@ -13,6 +13,7 @@
  */
 package com.google.dart.tools.internal.corext.dom;
 
+import com.google.common.collect.ImmutableList;
 import com.google.dart.compiler.ast.DartBlock;
 import com.google.dart.compiler.ast.DartDeclaration;
 import com.google.dart.compiler.ast.DartIdentifier;
@@ -625,6 +626,17 @@ public class ASTNodes {
   }
 
   /**
+   * @return given {@link DartStatement} if not {@link DartBlock}, all children
+   *         {@link DartStatement}s if {@link DartBlock}.
+   */
+  public static List<DartStatement> getStatements(DartStatement statement) {
+    if (statement instanceof DartBlock) {
+      return ((DartBlock) statement).getStatements();
+    }
+    return ImmutableList.of(statement);
+  }
+
+  /**
    * @return the {@link VariableElement} if the given {@link DartIdentifier} is the local variable
    *         reference, or <code>null</code> in the other case.
    */