Don't use the keyed slow stub for named handlers.

src/ic/arm64/stub-cache-arm64.cc

Index: src/ic/arm64/stub-cache-arm64.cc
diff --git a/src/ic/arm64/stub-cache-arm64.cc b/src/ic/arm64/stub-cache-arm64.cc
index ce6622217e908083254e70e96c6a6b132787cb8f..8d378ce4c24c4aa1681e604999803f4a57c34c6b 100644
--- a/src/ic/arm64/stub-cache-arm64.cc
+++ b/src/ic/arm64/stub-cache-arm64.cc
@@ -23,10 +23,9 @@ namespace internal {
 //
 // 'receiver', 'name' and 'offset' registers are preserved on miss.
 static void ProbeTable(Isolate* isolate, MacroAssembler* masm,
-                       Code::Kind ic_kind, Code::Flags flags,
-                       StubCache::Table table, Register receiver, Register name,
-                       Register offset, Register scratch, Register scratch2,
-                       Register scratch3) {
+                       Code::Flags flags, StubCache::Table table,
+                       Register receiver, Register name, Register offset,
+                       Register scratch, Register scratch2, Register scratch3) {
   // Some code below relies on the fact that the Entry struct contains
   // 3 pointers (name, code, map).
   STATIC_ASSERT(sizeof(StubCache::Entry) == (3 * kPointerSize));
@@ -137,8 +136,8 @@ void StubCache::GenerateProbe(MacroAssembler* masm, Code::Kind ic_kind,
           CountTrailingZeros(kPrimaryTableSize, 64));
 
   // Probe the primary table.
-  ProbeTable(isolate, masm, ic_kind, flags, kPrimary, receiver, name, scratch,
-             extra, extra2, extra3);
+  ProbeTable(isolate, masm, flags, kPrimary, receiver, name, scratch, extra,
+             extra2, extra3);
 
   // Primary miss: Compute hash for secondary table.
   __ Sub(scratch, scratch, Operand(name, LSR, kCacheIndexShift));
@@ -146,8 +145,8 @@ void StubCache::GenerateProbe(MacroAssembler* masm, Code::Kind ic_kind,
   __ And(scratch, scratch, kSecondaryTableSize - 1);
 
   // Probe the secondary table.
-  ProbeTable(isolate, masm, ic_kind, flags, kSecondary, receiver, name, scratch,
-             extra, extra2, extra3);
+  ProbeTable(isolate, masm, flags, kSecondary, receiver, name, scratch, extra,
+             extra2, extra3);
 
   // Cache miss: Fall-through and let caller handle the miss by
   // entering the runtime system.