Remove unused isolate parameter from NumberToSize and TryNumberToSize

test/cctest/test-conversions.cc

Index: test/cctest/test-conversions.cc
diff --git a/test/cctest/test-conversions.cc b/test/cctest/test-conversions.cc
index 84bbc59d8a1627a9616f6f5c0eb320b8c7120264..9569dc867857dd13a82c35e14ca3ba0bed48ab22 100644
--- a/test/cctest/test-conversions.cc
+++ b/test/cctest/test-conversions.cc
@@ -413,7 +413,7 @@ TEST(NoHandlesForTryNumberToSize) {
   {
     SealHandleScope no_handles(isolate);
     Smi* smi = Smi::FromInt(1);
-    CHECK(TryNumberToSize(isolate, smi, &result));
+    CHECK(TryNumberToSize(smi, &result));
     CHECK_EQ(result, 1);
   }
   result = 0;
@@ -422,14 +422,14 @@ TEST(NoHandlesForTryNumberToSize) {
     Handle<HeapNumber> heap_number1 = isolate->factory()->NewHeapNumber(2.0);
     {
       SealHandleScope no_handles(isolate);
-      CHECK(TryNumberToSize(isolate, *heap_number1, &result));
+      CHECK(TryNumberToSize(*heap_number1, &result));
       CHECK_EQ(result, 2);
     }
     Handle<HeapNumber> heap_number2 = isolate->factory()->NewHeapNumber(
         static_cast<double>(std::numeric_limits<size_t>::max()) + 10000.0);
     {
       SealHandleScope no_handles(isolate);
-      CHECK(!TryNumberToSize(isolate, *heap_number2, &result));
+      CHECK(!TryNumberToSize(*heap_number2, &result));
     }
   }
 }