Revert revisions 3013, 3014, and 3016. We need a better solution.

src/checks.h

Index: src/checks.h
===================================================================
--- src/checks.h	(revision 3016)
+++ src/checks.h	(working copy)
@@ -80,28 +80,7 @@
   }
 }
 
-// Helper function used by the CHECK_INT64_EQ function when given int64_t
-// arguments.  Should not be called directly.  We do not overload CHECK_EQ
-// with both 32-bit and 64-bit integers, because it causes ambiguity
-// with operands of mixed sizes.
-static inline void CheckInt64EqualsHelper(const char* file, int line,
-                                          const char* expected_source,
-                                          int64_t expected,
-                                          const char* value_source,
-                                          int64_t value) {
-  if (expected != value) {
-    // Print int64_t values in hex, as two int32s,
-    // to avoid platform-dependencies.
-    V8_Fatal(file, line,
-             "CHECK_EQ(%s, %s) failed\n#"
-             "   Expected: 0x%08x%08x\n#   Found: 0x%08x%08x",
-             expected_source, value_source,
-             uint32_t(expected >> 32), uint32_t(expected),
-             uint32_t(value >> 32), uint32_t(value));
-  }
-}
 
-
 // Helper function used by the CHECK_NE function when given int
 // arguments.  Should not be called directly.
 static inline void CheckNonEqualsHelper(const char* file,
@@ -233,10 +212,7 @@
 #define CHECK_GT(a, b) CHECK((a) > (b))
 #define CHECK_GE(a, b) CHECK((a) >= (b))
 
-#define CHECK_INT64_EQ(expected, value) CheckInt64EqualsHelper(__FILE__, \
-  __LINE__, #expected, expected, #value, value)
 
-
 // This is inspired by the static assertion facility in boost.  This
 // is pretty magical.  If it causes you trouble on a platform you may
 // find a fix in the boost code.