[debug] use catch prediction flag for promise rejections.

src/compiler/linkage.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_COMPILER_LINKAGE_H_
 #define V8_COMPILER_LINKAGE_H_
 
 #include "src/base/flags.h"
 #include "src/compiler/frame.h"
 #include "src/compiler/operator.h"
@@ skipping 157 matching lines @@
     kCallCodeObject,  // target is a Code object
     kCallJSFunction,  // target is a JSFunction object
     kCallAddress      // target is a machine pointer
   };
 
   enum Flag {
     kNoFlags = 0u,
     kNeedsFrameState = 1u << 0,
     kHasExceptionHandler = 1u << 1,
     kHasLocalCatchHandler = 1u << 2,
-    kSupportsTailCalls = 1u << 3,
-    kCanUseRoots = 1u << 4,
+    kHasLocalCatchHandlerForPromiseReject = 1u << 3,
+    kSupportsTailCalls = 1u << 4,
+    kCanUseRoots = 1u << 5,
     // (arm64 only) native stack should be used for arguments.
-    kUseNativeStack = 1u << 5,
+    kUseNativeStack = 1u << 6,
     // (arm64 only) call instruction has to restore JSSP or CSP.
-    kRestoreJSSP = 1u << 6,
-    kRestoreCSP = 1u << 7,
+    kRestoreJSSP = 1u << 7,
+    kRestoreCSP = 1u << 8,
     // Causes the code generator to initialize the root register.
-    kInitializeRootRegister = 1u << 8,
+    kInitializeRootRegister = 1u << 9,
     // Does not ever try to allocate space on our heap.
-    kNoAllocate = 1u << 9
+    kNoAllocate = 1u << 10
   };
   typedef base::Flags<Flag> Flags;
 
   CallDescriptor(Kind kind, MachineType target_type, LinkageLocation target_loc,
                  LocationSignature* location_sig, size_t stack_param_count,
                  Operator::Properties properties,
                  RegList callee_saved_registers,
                  RegList callee_saved_fp_registers, Flags flags,
                  const char* debug_name = "")
       : kind_(kind),
@@ skipping 226 matching lines @@
   CallDescriptor* const incoming_;
 
   DISALLOW_COPY_AND_ASSIGN(Linkage);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_LINKAGE_H_