Revert of [fullcodegen] Remove the hacky %_FastOneByteArrayJoin intrinsic.

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 79 matching lines @@
   V(kGeneratedCodeIsTooLarge, "Generated code is too large")                   \
   V(kGeneratorFailedToResume, "Generator failed to resume")                    \
   V(kGenerator, "Generator")                                                   \
   V(kGlobalFunctionsMustHaveInitialMap,                                        \
     "Global functions must have initial map")                                  \
   V(kHeapNumberMapRegisterClobbered, "HeapNumberMap register clobbered")       \
   V(kHydrogenFilter, "Optimization disabled by filter")                        \
   V(kImportDeclaration, "Import declaration")                                  \
   V(kIndexIsNegative, "Index is negative")                                     \
   V(kIndexIsTooLarge, "Index is too large")                                    \
+  V(kInlinedRuntimeFunctionFastOneByteArrayJoin,                               \
+    "Inlined runtime function: FastOneByteArrayJoin")                          \
   V(kInliningBailedOut, "Inlining bailed out")                                 \
   V(kInputGPRIsExpectedToHaveUpper32Cleared,                                   \
     "Input GPR is expected to have upper32 cleared")                           \
   V(kInputStringTooLong, "Input string too long")                              \
   V(kInteger32ToSmiFieldWritingToNonSmiLocation,                               \
     "Integer32ToSmiField writing to non-smi location")                         \
   V(kInvalidCaptureReferenced, "Invalid capture referenced")                   \
   V(kInvalidElementsKindForInternalArrayOrInternalPackedArray,                 \
     "Invalid ElementsKind for InternalArray or InternalPackedArray")           \
   V(kInvalidFullCodegenState, "invalid full-codegen state")                    \
@@ skipping 10 matching lines @@
     "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")     \
   V(kMapBecameDeprecated, "Map became deprecated")                             \
   V(kMapBecameUnstable, "Map became unstable")                                 \
   V(kNativeFunctionLiteral, "Native function literal")                         \
   V(kNeedSmiLiteral, "Need a Smi literal here")                                \
   V(kNoCasesLeft, "No cases left")                                             \
+  V(kNoEmptyArraysHereInEmitFastOneByteArrayJoin,                              \
+    "No empty arrays here in EmitFastOneByteArrayJoin")                        \
   V(kNonInitializerAssignmentToConst, "Non-initializer assignment to const")   \
   V(kNonSmiIndex, "Non-smi index")                                             \
   V(kNonSmiKeyInArrayLiteral, "Non-smi key in array literal")                  \
   V(kNonSmiValue, "Non-smi value")                                             \
   V(kNonObject, "Non-object value")                                            \
   V(kNotEnoughVirtualRegistersForValues,                                       \
     "Not enough virtual registers for values")                                 \
   V(kNotEnoughSpillSlotsForOsr, "Not enough spill slots for OSR")              \
   V(kNotEnoughVirtualRegistersRegalloc,                                        \
     "Not enough virtual registers (regalloc)")                                 \
@@ skipping 129 matching lines @@
 };
 #undef ERROR_MESSAGES_CONSTANTS
 
 
 const char* GetBailoutReason(BailoutReason reason);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BAILOUT_REASON_H_