Reland "Add basic crankshaft support for slow-mode for-in to avoid disabling optimizations"

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 76 matching lines @@
   V(kExpectedFixedArrayInRegisterR2, "Expected fixed array in register r2")    \
   V(kExpectedFixedArrayInRegisterRbx, "Expected fixed array in register rbx")  \
   V(kExpectedNewSpaceObject, "Expected new space object")                      \
   V(kExpectedSmiOrHeapNumber, "Expected smi or HeapNumber")                    \
   V(kExpectedUndefinedOrCell, "Expected undefined or cell in register")        \
   V(kExpectingAlignmentForCopyBytes, "Expecting alignment for CopyBytes")      \
   V(kExportDeclaration, "Export declaration")                                  \
   V(kExternalStringExpectedButNotFound,                                        \
     "External string expected, but not found")                                 \
   V(kFailedBailedOutLastTime, "Failed/bailed out last time")                   \
-  V(kForInStatementIsNotFastCase, "ForInStatement is not fast case")           \
   V(kForInStatementOptimizationIsDisabled,                                     \
     "ForInStatement optimization is disabled")                                 \
   V(kForInStatementWithNonLocalEachVariable,                                   \
     "ForInStatement with non-local each variable")                             \
   V(kForOfStatement, "ForOfStatement")                                         \
   V(kFrameIsExpectedToBeAligned, "Frame is expected to be aligned")            \
   V(kFunctionCallsEval, "Function calls eval")                                 \
   V(kFunctionIsAGenerator, "Function is a generator")                          \
   V(kFunctionWithIllegalRedeclaration, "Function with illegal redeclaration")  \
   V(kGeneratedCodeIsTooLarge, "Generated code is too large")                   \
@@ skipping 226 matching lines @@
 };
 #undef ERROR_MESSAGES_CONSTANTS
 
 
 const char* GetBailoutReason(BailoutReason reason);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BAILOUT_REASON_H_