[generators] Create the fixed array holding the registers only once.

src/bailout-reason.h

 // Copyright 2014 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_BAILOUT_REASON_H_
 #define V8_BAILOUT_REASON_H_
 
 namespace v8 {
 namespace internal {
 
@@ skipping 92 matching lines @@
   V(kInvalidBytecode, "Invalid bytecode")                                      \
   V(kInvalidCaptureReferenced, "Invalid capture referenced")                   \
   V(kInvalidElementsKindForInternalArrayOrInternalPackedArray,                 \
     "Invalid ElementsKind for InternalArray or InternalPackedArray")           \
   V(kInvalidFullCodegenState, "invalid full-codegen state")                    \
   V(kInvalidHandleScopeLevel, "Invalid HandleScope level")                     \
   V(kInvalidLeftHandSideInAssignment, "Invalid left-hand side in assignment")  \
   V(kInvalidLhsInCompoundAssignment, "Invalid lhs in compound assignment")     \
   V(kInvalidLhsInCountOperation, "Invalid lhs in count operation")             \
   V(kInvalidMinLength, "Invalid min_length")                                   \
+  V(kInvalidRegisterFileInGenerator, "invalid register file in generator")     \
   V(kJSGlobalObjectNativeContextShouldBeANativeContext,                        \
     "JSGlobalObject::native_context should be a native context")               \
   V(kJSGlobalProxyContextShouldNotBeNull,                                      \
     "JSGlobalProxy::context() should not be null")                             \
   V(kJSObjectWithFastElementsMapHasSlowElements,                               \
     "JSObject with fast elements map has slow elements")                       \
   V(kLetBindingReInitialization, "Let binding re-initialization")              \
   V(kLiveBytesCountOverflowChunkSize, "Live Bytes Count overflow chunk size")  \
   V(kLiveEdit, "LiveEdit")                                                     \
   V(kLookupVariableInCountOperation, "Lookup variable in count operation")     \
@@ skipping 155 matching lines @@
 };
 #undef ERROR_MESSAGES_CONSTANTS
 
 
 const char* GetBailoutReason(BailoutReason reason);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BAILOUT_REASON_H_