Revert of [intrinsic] Drop the %_ValueOf intrinsic.

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 9f43c0acfceeeff5bfec4d3fca72ebbf41830f2d..edd83bc5e80adb19b31ec41ff1dbe1a738658e54 100644
--- a/src/runtime/runtime-numbers.cc
+++ b/src/runtime/runtime-numbers.cc
@@ -12,6 +12,90 @@
 
 namespace v8 {
 namespace internal {
+
+RUNTIME_FUNCTION(Runtime_NumberToRadixString) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+  CONVERT_SMI_ARG_CHECKED(radix, 1);
+  CHECK(2 <= radix && radix <= 36);
+
+  // Fast case where the result is a one character string.
+  if (args[0]->IsSmi()) {
+    int value = args.smi_at(0);
+    if (value >= 0 && value < radix) {
+      // Character array used for conversion.
+      static const char kCharTable[] = "0123456789abcdefghijklmnopqrstuvwxyz";
+      return *isolate->factory()->LookupSingleCharacterStringFromCode(
+          kCharTable[value]);
+    }
+  }
+
+  // Slow case.
+  CONVERT_DOUBLE_ARG_CHECKED(value, 0);
+  if (std::isnan(value)) {
+    return isolate->heap()->nan_string();
+  }
+  if (std::isinf(value)) {
+    if (value < 0) {
+      return isolate->heap()->minus_infinity_string();
+    }
+    return isolate->heap()->infinity_string();
+  }
+  char* str = DoubleToRadixCString(value, radix);
+  Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str);
+  DeleteArray(str);
+  return *result;
+}
+
+
+RUNTIME_FUNCTION(Runtime_NumberToFixed) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+
+  CONVERT_DOUBLE_ARG_CHECKED(value, 0);
+  CONVERT_DOUBLE_ARG_CHECKED(f_number, 1);
+  int f = FastD2IChecked(f_number);
+  // See DoubleToFixedCString for these constants:
+  CHECK(f >= 0 && f <= 20);
+  CHECK(!Double(value).IsSpecial());
+  char* str = DoubleToFixedCString(value, f);
+  Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str);
+  DeleteArray(str);
+  return *result;
+}
+
+
+RUNTIME_FUNCTION(Runtime_NumberToExponential) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+
+  CONVERT_DOUBLE_ARG_CHECKED(value, 0);
+  CONVERT_DOUBLE_ARG_CHECKED(f_number, 1);
+  int f = FastD2IChecked(f_number);
+  CHECK(f >= -1 && f <= 20);
+  CHECK(!Double(value).IsSpecial());
+  char* str = DoubleToExponentialCString(value, f);
+  Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str);
+  DeleteArray(str);
+  return *result;
+}
+
+
+RUNTIME_FUNCTION(Runtime_NumberToPrecision) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 2);
+
+  CONVERT_DOUBLE_ARG_CHECKED(value, 0);
+  CONVERT_DOUBLE_ARG_CHECKED(f_number, 1);
+  int f = FastD2IChecked(f_number);
+  CHECK(f >= 1 && f <= 21);
+  CHECK(!Double(value).IsSpecial());
+  char* str = DoubleToPrecisionCString(value, f);
+  Handle<String> result = isolate->factory()->NewStringFromAsciiChecked(str);
+  DeleteArray(str);
+  return *result;
+}
+
 
 RUNTIME_FUNCTION(Runtime_IsValidSmi) {
   SealHandleScope shs(isolate);