Verify that source string matches serialized code.

src/assert-scope.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ASSERT_SCOPE_H_
 #define V8_ASSERT_SCOPE_H_
 
 #include "src/allocation.h"
 #include "src/base/platform/platform.h"
 #include "src/utils.h"
@@ skipping 10 matching lines @@
   DEFERRED_HANDLE_DEREFERENCE_ASSERT,
   CODE_DEPENDENCY_CHANGE_ASSERT,
   LAST_PER_THREAD_ASSERT_TYPE
 };
 
 
 enum PerIsolateAssertType {
   JAVASCRIPT_EXECUTION_ASSERT,
   JAVASCRIPT_EXECUTION_THROWS,
   ALLOCATION_FAILURE_ASSERT,
-  DEOPTIMIZATION_ASSERT
+  DEOPTIMIZATION_ASSERT,
+  COMPILATION_ASSERT
 };
 
 
 class PerThreadAssertData {
  public:
   PerThreadAssertData() : nesting_level_(0) {
     for (int i = 0; i < LAST_PER_THREAD_ASSERT_TYPE; i++) {
       assert_states_[i] = true;
     }
   }
@@ skipping 205 matching lines @@
     AllowAllocationFailure;
 
 // Scope to document where we do not expect deoptimization.
 typedef PerIsolateAssertScopeDebugOnly<DEOPTIMIZATION_ASSERT, false>
     DisallowDeoptimization;
 
 // Scope to introduce an exception to DisallowDeoptimization.
 typedef PerIsolateAssertScopeDebugOnly<DEOPTIMIZATION_ASSERT, true>
     AllowDeoptimization;
 
+// Scope to document where we do not expect deoptimization.
+typedef PerIsolateAssertScopeDebugOnly<COMPILATION_ASSERT, false>
+    DisallowCompilation;
+
+// Scope to introduce an exception to DisallowDeoptimization.
+typedef PerIsolateAssertScopeDebugOnly<COMPILATION_ASSERT, true>
+    AllowCompilation;
 } }  // namespace v8::internal
 
 #endif  // V8_ASSERT_SCOPE_H_