[build] Fix a clang warning

src/x87/disasm-x87.cc

Index: src/x87/disasm-x87.cc
diff --git a/src/x87/disasm-x87.cc b/src/x87/disasm-x87.cc
index 3a65c3a33fc729e77d0ccbafc67a000a87784839..be9167bc921bcf514ba699cea839dd38559b4d42 100644
--- a/src/x87/disasm-x87.cc
+++ b/src/x87/disasm-x87.cc
@@ -1780,7 +1780,7 @@ static const char* const xmm_regs[8] = {
 
 
 const char* NameConverter::NameOfAddress(byte* addr) const {
-  v8::internal::SNPrintF(tmp_buffer_, "%p", addr);
+  v8::internal::SNPrintF(tmp_buffer_, "%p", static_cast<void*>(addr));
   return tmp_buffer_.start();
 }
 
@@ -1843,7 +1843,7 @@ int Disassembler::ConstantPoolSizeAt(byte* instruction) { return -1; }
     buffer[0] = '\0';
     byte* prev_pc = pc;
     pc += d.InstructionDecode(buffer, pc);
-    fprintf(f, "%p", prev_pc);
+    fprintf(f, "%p", static_cast<void*>(prev_pc));
     fprintf(f, "    ");
 
     for (byte* bp = prev_pc; bp < pc; bp++) {