S390: Turn StoreIC::Megamorphic into a builtin, get rid of the non-monomorphic-cache

Port 79ff6507

R=verwaest@chromium.org, joransiu@ca.ibm.com, mbrandy@us.ibm.com, michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1877353002

Cr-Commit-Position: refs/heads/master@{#35422}

src/ic/s390/ic-s390.cc

@@ -732,7 +732,7 @@ void StoreIC::GenerateMegamorphic(MacroAssembler* masm) {
       Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::STORE_IC));
 
   masm->isolate()->stub_cache()->GenerateProbe(masm, Code::STORE_IC, flags,
-                                               receiver, name, r5, r6, r7, r8);
+                                               receiver, name, r7, r8, r9, ip);
 
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);