Properly disallow 'yield' in class expressions and arrow parameters

src/messages.h

 // Copyright 2006-2008 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.
 
 // The infrastructure used for (localized) message reporting in V8.
 //
 // Note: there's a big unresolved issue about ownership of the data
 // structures used by this framework.
 
 #ifndef V8_MESSAGES_H_
@@ skipping 99 matching lines @@
   T(ConstructorNotFunction, "Constructor % requires 'new'")                    \
   T(ConstructorNotReceiver, "The .constructor property is not an object")      \
   T(CurrencyCode, "Currency code is required with currency style.")            \
   T(DataViewNotArrayBuffer,                                                    \
     "First argument to DataView constructor must be an ArrayBuffer")           \
   T(DateType, "this is not a Date object.")                                    \
   T(DebuggerFrame, "Debugger: Invalid frame index.")                           \
   T(DebuggerType, "Debugger: Parameters have wrong types.")                    \
   T(DeclarationMissingInitializer, "Missing initializer in % declaration")     \
   T(DefineDisallowed, "Cannot define property:%, object is not extensible.")   \
-  T(DetachedOperation,                                                         \
-    "Cannot perform % on a detached ArrayBuffer")                              \
+  T(DetachedOperation, "Cannot perform % on a detached ArrayBuffer")           \
   T(DuplicateTemplateProperty, "Object template has duplicate property '%'")   \
   T(ExtendsValueGenerator,                                                     \
     "Class extends value % may not be a generator function")                   \
   T(ExtendsValueNotFunction,                                                   \
     "Class extends value % is not a function or null")                         \
   T(FirstArgumentNotRegExp,                                                    \
     "First argument to % must not be a regular expression")                    \
   T(FunctionBind, "Bind must be called on a function")                         \
   T(GeneratorRunning, "Generator is already running")                          \
   T(IllegalInvocation, "Illegal invocation")                                   \
@@ skipping 324 matching lines @@
   T(UnexpectedTokenRegExp, "Unexpected regular expression")                    \
   T(UnknownLabel, "Undefined label '%'")                                       \
   T(UnterminatedArgList, "missing ) after argument list")                      \
   T(UnterminatedRegExp, "Invalid regular expression: missing /")               \
   T(UnterminatedTemplate, "Unterminated template literal")                     \
   T(UnterminatedTemplateExpr, "Missing } in template expression")              \
   T(FoundNonCallableHasInstance, "Found non-callable @@hasInstance")           \
   T(InvalidHexEscapeSequence, "Invalid hexadecimal escape sequence")           \
   T(InvalidUnicodeEscapeSequence, "Invalid Unicode escape sequence")           \
   T(UndefinedUnicodeCodePoint, "Undefined Unicode code-point")                 \
+  T(YieldInParameter, "Yield expression not allowed in formal parameter")      \
   /* EvalError */                                                              \
   T(CodeGenFromStrings, "%")                                                   \
   /* URIError */                                                               \
   T(URIMalformed, "URI malformed")                                             \
   /* Wasm errors (currently Error) */                                          \
   T(WasmTrapUnreachable, "unreachable")                                        \
   T(WasmTrapMemOutOfBounds, "memory access out of bounds")                     \
   T(WasmTrapDivByZero, "divide by zero")                                       \
   T(WasmTrapDivUnrepresentable, "divide result unrepresentable")               \
   T(WasmTrapRemByZero, "remainder by zero")                                    \
@@ skipping 41 matching lines @@
   static Handle<String> GetMessage(Isolate* isolate, Handle<Object> data);
   static base::SmartArrayPointer<char> GetLocalizedMessage(Isolate* isolate,
                                                            Handle<Object> data);
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_MESSAGES_H_