Fix presubmit error (multiple statements on the same line).

src/ast.h

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 136 matching lines @@
   virtual BinaryOperation* AsBinaryOperation() { return NULL; }
   virtual Assignment* AsAssignment() { return NULL; }
   virtual FunctionLiteral* AsFunctionLiteral() { return NULL; }
   virtual MaterializedLiteral* AsMaterializedLiteral() { return NULL; }
   virtual ObjectLiteral* AsObjectLiteral() { return NULL; }
   virtual ArrayLiteral* AsArrayLiteral() { return NULL; }
   virtual CompareOperation* AsCompareOperation() { return NULL; }
 
   // True if the AST node is critical (its execution is needed or externally
   // visible in some way).
-  virtual bool IsCritical() { UNREACHABLE(); return true; }
+  virtual bool IsCritical() {
+    UNREACHABLE();
+    return true;
+  }
 
   int num() { return num_; }
   void set_num(int n) { num_ = n; }
 
  private:
   // Support for ast node numbering.
   int num_;
 };
 
 
@@ skipping 1987 matching lines @@
 
   // Holds the result of copying an expression.
   Expression* expr_;
   // Holds the result of copying a statement.
   Statement* stmt_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_AST_H_