PPC/s390: [runtime] Rename Builtins::Name to Builtin 2/2

Port 407317a2

Original Commit Message:

    - Convert Builtin to enum class
    - Change int-based builtin_index methods to use Builtin
    - Change Builtins::builtin to Builtins::code

R=cbruni@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Ic92eeea4a0d0aaf38d78a93bfbaac2bb10403dae
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2960908Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#75134}

src/codegen/ppc/macro-assembler-ppc.cc

@@ -176,7 +176,7 @@ void TurboAssembler::Jump(Handle<Code> code, RelocInfo::Mode rmode,
   DCHECK_IMPLIES(options().isolate_independent_code,
                  Builtins::IsIsolateIndependentBuiltin(*code));
 
-  int builtin_index = Builtin::kNoBuiltinId;
+  Builtin builtin_index = Builtin::kNoBuiltinId;
   bool target_is_builtin =
       isolate()->builtins()->IsBuiltinHandle(code, &builtin_index);
 
@@ -265,7 +265,7 @@ void TurboAssembler::Call(Handle<Code> code, RelocInfo::Mode rmode,
   DCHECK_IMPLIES(options().use_pc_relative_calls_and_jumps,
                  Builtins::IsIsolateIndependentBuiltin(*code));
 
-  int builtin_index = Builtin::kNoBuiltinId;
+  Builtin builtin_index = Builtin::kNoBuiltinId;
   bool target_is_builtin =
       isolate()->builtins()->IsBuiltinHandle(code, &builtin_index);
 

src/codegen/s390/macro-assembler-s390.cc

@@ -401,7 +401,7 @@ void TurboAssembler::Jump(Handle<Code> code, RelocInfo::Mode rmode,
   DCHECK_IMPLIES(options().isolate_independent_code,
                  Builtins::IsIsolateIndependentBuiltin(*code));
 
-  int builtin_index = Builtin::kNoBuiltinId;
+  Builtin builtin_index = Builtin::kNoBuiltinId;
   bool target_is_builtin =
       isolate()->builtins()->IsBuiltinHandle(code, &builtin_index);
 
@@ -462,7 +462,7 @@ void TurboAssembler::Call(Handle<Code> code, RelocInfo::Mode rmode,
 
   DCHECK_IMPLIES(options().isolate_independent_code,
                  Builtins::IsIsolateIndependentBuiltin(*code));
-  int builtin_index = Builtin::kNoBuiltinId;
+  Builtin builtin_index = Builtin::kNoBuiltinId;
   bool target_is_builtin =
       isolate()->builtins()->IsBuiltinHandle(code, &builtin_index);