Use C++ style type casts.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 20553eb64bc94889c24418fab89dca2eeadf3346..643dc518d57e51378ac97de45d7245f7506cb5d7 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -6754,7 +6754,7 @@ const unibrow::byte* ConsString::ConsStringReadBlock(ReadBlockBuffer* rbb,
 
   while (true) {
     String* left = current->first();
-    unsigned left_length = (unsigned)left->length();
+    unsigned left_length = static_cast<unsigned>(left->length());
     if (left_length > offset &&
         (max_chars <= left_length - offset ||
          (rbb->capacity <= left_length - offset &&
@@ -7129,7 +7129,7 @@ String* ConsStringIteratorOp::NextLeaf(bool* blew_stack,
     if ((type & kStringRepresentationMask) != kConsStringTag) {
       // Pop stack so next iteration is in correct place.
       Pop();
-      unsigned length = (unsigned) string->length();
+      unsigned length = static_cast<unsigned>(string->length());
       // Could be a flattened ConsString.
       if (length == 0) continue;
       *length_out = length;
@@ -7147,7 +7147,7 @@ String* ConsStringIteratorOp::NextLeaf(bool* blew_stack,
       type = string->map()->instance_type();
       if ((type & kStringRepresentationMask) != kConsStringTag) {
         AdjustMaximumDepth();
-        unsigned length = (unsigned) string->length();
+        unsigned length = static_cast<unsigned>(string->length());
         ASSERT(length != 0);
         *length_out = length;
         *type_out = type;
@@ -7171,7 +7171,7 @@ void String::ReadBlockIntoBuffer(String* input,
                                  ReadBlockBuffer* rbb,
                                  unsigned* offset_ptr,
                                  unsigned max_chars) {
-  ASSERT(*offset_ptr <= (unsigned)input->length());
+  ASSERT(*offset_ptr <= static_cast<unsigned>(input->length()));
   if (max_chars == 0) return;
 
   switch (StringShape(input).representation_tag()) {
@@ -7222,7 +7222,7 @@ const unibrow::byte* String::ReadBlock(String* input,
                                        unsigned capacity,
                                        unsigned* remaining,
                                        unsigned* offset_ptr) {
-  ASSERT(*offset_ptr <= (unsigned)input->length());
+  ASSERT(*offset_ptr <= static_cast<unsigned>(input->length()));
   unsigned chars = input->length() - *offset_ptr;
   ReadBlockBuffer rbb(util_buffer, 0, capacity, 0);
   const unibrow::byte* answer = ReadBlock(input, &rbb, offset_ptr, chars);
@@ -7238,7 +7238,7 @@ const unibrow::byte* String::ReadBlock(String** raw_input,
                                        unsigned* remaining,
                                        unsigned* offset_ptr) {
   Handle<String> input(raw_input);
-  ASSERT(*offset_ptr <= (unsigned)input->length());
+  ASSERT(*offset_ptr <= static_cast<unsigned>(input->length()));
   unsigned chars = input->length() - *offset_ptr;
   if (chars > capacity) chars = capacity;
   ReadBlockBuffer rbb(util_buffer, 0, capacity, 0);
@@ -7263,7 +7263,7 @@ void ConsString::ConsStringReadBlockIntoBuffer(ReadBlockBuffer* rbb,
 
   while (true) {
     String* left = current->first();
-    unsigned left_length = (unsigned)left->length();
+    unsigned left_length = static_cast<unsigned>(left->length());
     if (left_length > offset &&
       max_chars <= left_length - offset) {
       // Left hand side only - iterate unless we have reached the bottom of