Avoid name clashes of builtins and runtime functions.

src/runtime.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_RUNTIME_H_
 #define V8_RUNTIME_H_
 
 #include "allocation.h"
 #include "zone.h"
 
@@ skipping 120 matching lines @@
   F(NumberEquals, 2, 1) \
   F(StringEquals, 2, 1) \
   \
   F(NumberCompare, 3, 1) \
   F(SmiLexicographicCompare, 2, 1) \
   \
   /* Math */ \
   F(MathAcos, 1, 1) \
   F(MathAsin, 1, 1) \
   F(MathAtan, 1, 1) \
-  F(MathFloor, 1, 1) \
+  F(MathFloorRT, 1, 1) \
   F(MathAtan2, 2, 1) \
-  F(MathExp, 1, 1) \
+  F(MathExpRT, 1, 1) \
   F(RoundNumber, 1, 1) \
   F(MathFround, 1, 1) \
   \
   /* Regular expressions */ \
   F(RegExpCompile, 3, 1) \
   F(RegExpExecMultiple, 4, 1) \
   F(RegExpInitializeObject, 5, 1) \
   \
   /* JSON */ \
   F(ParseJson, 1, 1) \
@@ skipping 523 matching lines @@
   F(TypedArrayMaxSizeInHeap, 0, 1)                                           \
   F(ArrayBufferViewGetByteLength, 1, 1)                                      \
   F(ArrayBufferViewGetByteOffset, 1, 1)                                      \
   F(TypedArrayGetLength, 1, 1)                                               \
   /* ArrayBuffer */                                                          \
   F(ArrayBufferGetByteLength, 1, 1)                                          \
   /* Maths */                                                                \
   F(ConstructDouble, 2, 1)                                                   \
   F(DoubleHi, 1, 1)                                                          \
   F(DoubleLo, 1, 1)                                                          \
-  F(MathSqrt, 1, 1)                                                          \
+  F(MathSqrtRT, 1, 1)                                                        \
   F(MathLog, 1, 1)                                                           \
   /* Debugger */                                                             \
   F(DebugCallbackSupportsStepping, 1, 1)
 
 
 //---------------------------------------------------------------------------
 // Runtime provides access to all C++ runtime functions.
 
 class RuntimeState {
  public:
@@ skipping 197 matching lines @@
 class AllocateDoubleAlignFlag:  public BitField<bool,            0, 1> {};
 class AllocateTargetSpace:      public BitField<AllocationSpace, 1, 3> {};
 
 class DeclareGlobalsEvalFlag:   public BitField<bool,       0, 1> {};
 class DeclareGlobalsNativeFlag: public BitField<bool,       1, 1> {};
 class DeclareGlobalsStrictMode: public BitField<StrictMode, 2, 1> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_