[runtime] Use DCHECK_EQ instead of DCHECK for number of args.

src/runtime/runtime-numbers.cc

Index: src/runtime/runtime-numbers.cc
diff --git a/src/runtime/runtime-numbers.cc b/src/runtime/runtime-numbers.cc
index bfe8763e9902977a2aed9953c8cf3b3443f88754..4d8d5d267dbdc3a1169499698a53b0d4631db36b 100644
--- a/src/runtime/runtime-numbers.cc
+++ b/src/runtime/runtime-numbers.cc
@@ -15,7 +15,7 @@ namespace internal {
 
 RUNTIME_FUNCTION(Runtime_IsValidSmi) {
   SealHandleScope shs(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
 
   CONVERT_NUMBER_CHECKED(int32_t, number, Int32, args[0]);
   return isolate->heap()->ToBoolean(Smi::IsValid(number));
@@ -73,7 +73,7 @@ RUNTIME_FUNCTION(Runtime_StringParseInt) {
 // ES6 18.2.4 parseFloat(string)
 RUNTIME_FUNCTION(Runtime_StringParseFloat) {
   HandleScope shs(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_ARG_HANDLE_CHECKED(String, subject, 0);
 
   double value =
@@ -86,7 +86,7 @@ RUNTIME_FUNCTION(Runtime_StringParseFloat) {
 
 RUNTIME_FUNCTION(Runtime_NumberToString) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(number, 0);
 
   return *isolate->factory()->NumberToString(number);
@@ -95,7 +95,7 @@ RUNTIME_FUNCTION(Runtime_NumberToString) {
 
 RUNTIME_FUNCTION(Runtime_NumberToStringSkipCache) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_NUMBER_ARG_HANDLE_CHECKED(number, 0);
 
   return *isolate->factory()->NumberToString(number, false);
@@ -106,7 +106,7 @@ RUNTIME_FUNCTION(Runtime_NumberToStringSkipCache) {
 // a small integer.
 RUNTIME_FUNCTION(Runtime_NumberToSmi) {
   SealHandleScope shs(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_ARG_CHECKED(Object, obj, 0);
   if (obj->IsSmi()) {
     return obj;
@@ -126,7 +126,7 @@ RUNTIME_FUNCTION(Runtime_NumberToSmi) {
 // compared lexicographically.
 RUNTIME_FUNCTION(Runtime_SmiLexicographicCompare) {
   SealHandleScope shs(isolate);
-  DCHECK(args.length() == 2);
+  DCHECK_EQ(2, args.length());
   CONVERT_SMI_ARG_CHECKED(x_value, 0);
   CONVERT_SMI_ARG_CHECKED(y_value, 1);
 
@@ -200,14 +200,14 @@ RUNTIME_FUNCTION(Runtime_SmiLexicographicCompare) {
 
 RUNTIME_FUNCTION(Runtime_MaxSmi) {
   SealHandleScope shs(isolate);
-  DCHECK(args.length() == 0);
+  DCHECK_EQ(0, args.length());
   return Smi::FromInt(Smi::kMaxValue);
 }
 
 
 RUNTIME_FUNCTION(Runtime_IsSmi) {
   SealHandleScope shs(isolate);
-  DCHECK(args.length() == 1);
+  DCHECK_EQ(1, args.length());
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsSmi());
 }
@@ -215,21 +215,21 @@ RUNTIME_FUNCTION(Runtime_IsSmi) {
 
 RUNTIME_FUNCTION(Runtime_GetRootNaN) {
   SealHandleScope shs(isolate);
-  DCHECK(args.length() == 0);
+  DCHECK_EQ(0, args.length());
   return isolate->heap()->nan_value();
 }
 
 
 RUNTIME_FUNCTION(Runtime_GetHoleNaNUpper) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 0);
+  DCHECK_EQ(0, args.length());
   return *isolate->factory()->NewNumberFromUint(kHoleNanUpper32);
 }
 
 
 RUNTIME_FUNCTION(Runtime_GetHoleNaNLower) {
   HandleScope scope(isolate);
-  DCHECK(args.length() == 0);
+  DCHECK_EQ(0, args.length());
   return *isolate->factory()->NewNumberFromUint(kHoleNanLower32);
 }