Roll V8 back to 3.6

Roll back to V8 3.6 to fix x86 build, we don't have ucontext.h.

This reverts commits:
5d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0b
c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9
592a9fc1d8ea420377a2e7efd0600e20b058be2b

Bug: 5688872
Change-Id: Ic961bb5e65b778e98bbfb71cce71d99fa949e995
diff --git a/src/globals.h b/src/globals.h
index 25d4ffe..6c6966a 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1,4 +1,4 @@
-// Copyright 2012 the V8 project authors. All rights reserved.
+// Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -175,22 +175,17 @@
 // than defining __STDC_CONSTANT_MACROS before including <stdint.h>, and it
 // works on compilers that don't have it (like MSVC).
 #if V8_HOST_ARCH_64_BIT
-#if defined(_MSC_VER)
+#ifdef _MSC_VER
 #define V8_UINT64_C(x)  (x ## UI64)
 #define V8_INT64_C(x)   (x ## I64)
 #define V8_INTPTR_C(x)  (x ## I64)
 #define V8_PTR_PREFIX "ll"
-#elif defined(__MINGW64__)
-#define V8_UINT64_C(x)  (x ## ULL)
-#define V8_INT64_C(x)   (x ## LL)
-#define V8_INTPTR_C(x)  (x ## LL)
-#define V8_PTR_PREFIX "I64"
-#else
+#else  // _MSC_VER
 #define V8_UINT64_C(x)  (x ## UL)
 #define V8_INT64_C(x)   (x ## L)
 #define V8_INTPTR_C(x)  (x ## L)
 #define V8_PTR_PREFIX "l"
-#endif
+#endif  // _MSC_VER
 #else  // V8_HOST_ARCH_64_BIT
 #define V8_INTPTR_C(x)  (x)
 #define V8_PTR_PREFIX ""
@@ -235,9 +230,6 @@
 
 const int kDoubleSizeLog2 = 3;
 
-// Size of the state of a the random number generator.
-const int kRandomStateSize = 2 * kIntSize;
-
 #if V8_HOST_ARCH_64_BIT
 const int kPointerSizeLog2 = 3;
 const intptr_t kIntptrSignBit = V8_INT64_C(0x8000000000000000);
@@ -263,13 +255,8 @@
 const int kBinary32MantissaBits = 23;
 const int kBinary32ExponentShift = 23;
 
-// Quiet NaNs have bits 51 to 62 set, possibly the sign bit, and no
-// other bits set.
-const uint64_t kQuietNaNMask = static_cast<uint64_t>(0xfff) << 51;
-
-// ASCII/UTF-16 constants
+// ASCII/UC16 constants
 // Code-point values in Unicode 4.0 are 21 bits wide.
-// Code units in UTF-16 are 16 bits wide.
 typedef uint16_t uc16;
 typedef int32_t uc32;
 const int kASCIISize    = kCharSize;
@@ -300,7 +287,7 @@
 // The USE(x) template is used to silence C++ compiler warnings
 // issued for (yet) unused variables (typically parameters).
 template <typename T>
-inline void USE(T) { }
+static inline void USE(T) { }
 
 
 // FUNCTION_ADDR(f) gets the address of a C function f.
@@ -364,39 +351,6 @@
 class FreeStoreAllocationPolicy;
 template <typename T, class P = FreeStoreAllocationPolicy> class List;
 
-// -----------------------------------------------------------------------------
-// Declarations for use in both the preparser and the rest of V8.
-
-// The different language modes that V8 implements. ES5 defines two language
-// modes: an unrestricted mode respectively a strict mode which are indicated by
-// CLASSIC_MODE respectively STRICT_MODE in the enum. The harmony spec drafts
-// for the next ES standard specify a new third mode which is called 'extended
-// mode'. The extended mode is only available if the harmony flag is set. It is
-// based on the 'strict mode' and adds new functionality to it. This means that
-// most of the semantics of these two modes coincide.
-//
-// In the current draft the term 'base code' is used to refer to code that is
-// neither in strict nor extended mode. However, the more distinguishing term
-// 'classic mode' is used in V8 instead to avoid mix-ups.
-
-enum LanguageMode {
-  CLASSIC_MODE,
-  STRICT_MODE,
-  EXTENDED_MODE
-};
-
-
-// The Strict Mode (ECMA-262 5th edition, 4.2.2).
-//
-// This flag is used in the backend to represent the language mode. So far
-// there is no semantic difference between the strict and the extended mode in
-// the backend, so both modes are represented by the kStrictMode value.
-enum StrictModeFlag {
-  kNonStrictMode,
-  kStrictMode
-};
-
-
 } }  // namespace v8::internal
 
 #endif  // V8_GLOBALS_H_