[builtins] Add String.prototype.indexOf fast path in TF

src/interface-descriptors.h

Index: src/interface-descriptors.h
diff --git a/src/interface-descriptors.h b/src/interface-descriptors.h
index 1d1b48af93a0b4ab780f021beb69481897af625c..9061cdf6e0f78d201b606e06c8e96cbf6b13133e 100644
--- a/src/interface-descriptors.h
+++ b/src/interface-descriptors.h
@@ -17,88 +17,89 @@ namespace internal {
 class PlatformInterfaceDescriptor;
 
 #define INTERFACE_DESCRIPTOR_LIST(V)      \
-  V(Void)                                 \
-  V(ContextOnly)                          \
-  V(Load)                                 \
-  V(LoadWithVector)                       \
-  V(LoadField)                            \
-  V(LoadICProtoArray)                     \
-  V(LoadGlobal)                           \
-  V(LoadGlobalWithVector)                 \
-  V(Store)                                \
-  V(StoreWithVector)                      \
-  V(StoreNamedTransition)                 \
-  V(StoreTransition)                      \
-  V(VarArgFunction)                       \
-  V(FastNewClosure)                       \
-  V(FastNewFunctionContext)               \
-  V(FastNewObject)                        \
-  V(FastNewRestParameter)                 \
-  V(FastNewSloppyArguments)               \
-  V(FastNewStrictArguments)               \
-  V(TypeConversion)                       \
-  V(Typeof)                               \
-  V(FastCloneRegExp)                      \
-  V(FastCloneShallowArray)                \
-  V(FastCloneShallowObject)               \
-  V(CreateAllocationSite)                 \
-  V(CreateWeakCell)                       \
-  V(CallFunction)                         \
-  V(CallFunctionWithFeedback)             \
-  V(CallFunctionWithFeedbackAndVector)    \
-  V(CallConstruct)                        \
-  V(CallTrampoline)                       \
-  V(ConstructStub)                        \
-  V(ConstructTrampoline)                  \
-  V(RegExpExec)                           \
-  V(CopyFastSmiOrObjectElements)          \
-  V(TransitionElementsKind)               \
-  V(AllocateHeapNumber)                   \
-  V(AllocateFloat32x4)                    \
-  V(AllocateInt32x4)                      \
-  V(AllocateUint32x4)                     \
+  V(AllocateBool16x8)                     \
   V(AllocateBool32x4)                     \
+  V(AllocateBool8x16)                     \
+  V(AllocateFloat32x4)                    \
+  V(AllocateHeapNumber)                   \
   V(AllocateInt16x8)                      \
-  V(AllocateUint16x8)                     \
-  V(AllocateBool16x8)                     \
+  V(AllocateInt32x4)                      \
   V(AllocateInt8x16)                      \
+  V(AllocateUint16x8)                     \
+  V(AllocateUint32x4)                     \
   V(AllocateUint8x16)                     \
-  V(AllocateBool8x16)                     \
-  V(Builtin)                              \
+  V(ApiCallback)                          \
+  V(ApiGetter)                            \
+  V(ArgumentAdaptor)                      \
+  V(ArrayNArgumentsConstructor)           \
   V(ArrayNoArgumentConstructor)           \
   V(ArraySingleArgumentConstructor)       \
-  V(ArrayNArgumentsConstructor)           \
-  V(Compare)                              \
   V(BinaryOp)                             \
   V(BinaryOpWithAllocationSite)           \
   V(BinaryOpWithVector)                   \
+  V(Builtin)                              \
+  V(CallConstruct)                        \
+  V(CallFunction)                         \
+  V(CallFunctionWithFeedback)             \
+  V(CallFunctionWithFeedbackAndVector)    \
+  V(CallHandler)                          \
+  V(CallTrampoline)                       \
+  V(Compare)                              \
+  V(ConstructStub)                        \
+  V(ConstructTrampoline)                  \
+  V(ContextOnly)                          \
+  V(CopyFastSmiOrObjectElements)          \
   V(CountOp)                              \
-  V(StringAdd)                            \
-  V(StringCharAt)                         \
-  V(StringCharCodeAt)                     \
-  V(StringCompare)                        \
-  V(SubString)                            \
-  V(Keyed)                                \
-  V(Named)                                \
+  V(CreateAllocationSite)                 \
   V(CreateIterResultObject)               \
-  V(HasProperty)                          \
+  V(CreateWeakCell)                       \
+  V(FastCloneRegExp)                      \
+  V(FastCloneShallowArray)                \
+  V(FastCloneShallowObject)               \
+  V(FastNewClosure)                       \
+  V(FastNewFunctionContext)               \
+  V(FastNewObject)                        \
+  V(FastNewRestParameter)                 \
+  V(FastNewSloppyArguments)               \
+  V(FastNewStrictArguments)               \
   V(ForInFilter)                          \
   V(GetProperty)                          \
-  V(CallHandler)                          \
-  V(ArgumentAdaptor)                      \
-  V(ApiCallback)                          \
-  V(ApiGetter)                            \
-  V(MathPowTagged)                        \
-  V(MathPowInteger)                       \
   V(GrowArrayElements)                    \
-  V(NewArgumentsElements)                 \
+  V(HasProperty)                          \
+  V(InterpreterCEntry)                    \
   V(InterpreterDispatch)                  \
   V(InterpreterPushArgsAndCall)           \
   V(InterpreterPushArgsAndConstruct)      \
   V(InterpreterPushArgsAndConstructArray) \
-  V(InterpreterCEntry)                    \
+  V(Keyed)                                \
+  V(Load)                                 \
+  V(LoadField)                            \
+  V(LoadGlobal)                           \
+  V(LoadGlobalWithVector)                 \
+  V(LoadICProtoArray)                     \
+  V(LoadWithVector)                       \
+  V(MathPowInteger)                       \
+  V(MathPowTagged)                        \
+  V(Named)                                \
+  V(NewArgumentsElements)                 \
+  V(PromiseHandleReject)                  \
+  V(RegExpExec)                           \
   V(ResumeGenerator)                      \
-  V(PromiseHandleReject)
+  V(Store)                                \
+  V(StoreNamedTransition)                 \
+  V(StoreTransition)                      \
+  V(StoreWithVector)                      \
+  V(StringAdd)                            \
+  V(StringCharAt)                         \
+  V(StringCharCodeAt)                     \
+  V(StringCompare)                        \
+  V(StringIndexOf)                        \
+  V(SubString)                            \
+  V(TransitionElementsKind)               \
+  V(TypeConversion)                       \
+  V(Typeof)                               \
+  V(VarArgFunction)                       \
+  V(Void)
 
 class V8_EXPORT_PRIVATE CallInterfaceDescriptorData {
  public:
@@ -738,6 +739,13 @@ class StringCompareDescriptor : public CallInterfaceDescriptor {
   static const Register RightRegister();
 };
 
+class StringIndexOfDescriptor final : public CallInterfaceDescriptor {
+ public:
+  DEFINE_PARAMETERS(kReceiver, kSearchString, kPosition)
+  DECLARE_DEFAULT_DESCRIPTOR(StringIndexOfDescriptor, CallInterfaceDescriptor,
+                             kParameterCount)
+};
+
 class SubStringDescriptor : public CallInterfaceDescriptor {
  public:
   DEFINE_PARAMETERS(kString, kFrom, kTo)