Change some pointer alignment checks in irregexp to use intptr_t.

src/interpreter-irregexp.cc

Index: src/interpreter-irregexp.cc
diff --git a/src/interpreter-irregexp.cc b/src/interpreter-irregexp.cc
index 70680a861e47953cb568c41c44d87d00f9e02357..77bcc907431ab1d36f98e535211392ee97af303e 100644
--- a/src/interpreter-irregexp.cc
+++ b/src/interpreter-irregexp.cc
@@ -130,13 +130,13 @@ static void TraceInterpreter(const byte* code_base,
 
 
 static int32_t Load32Aligned(const byte* pc) {
-  ASSERT((reinterpret_cast<int>(pc) & 3) == 0);
+  ASSERT((reinterpret_cast<intptr_t>(pc) & 3) == 0);
   return *reinterpret_cast<const int32_t *>(pc);
 }
 
 
 static int32_t Load16Aligned(const byte* pc) {
-  ASSERT((reinterpret_cast<int>(pc) & 1) == 0);
+  ASSERT((reinterpret_cast<intptr_t>(pc) & 1) == 0);
   return *reinterpret_cast<const uint16_t *>(pc);
 }