Ensure consistency of Math.sqrt on Intel platforms.

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index 6e1827778302b358a7ec96f5fa37d1b27e560594..befd8f2de7e2b0601a3b42dda2ce1993959a6bcd 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -37,8 +37,7 @@ namespace internal {
 
 #define __ ACCESS_MASM(masm)
 
-TranscendentalFunction CreateTranscendentalFunction(
-    TranscendentalCache::Type type) {
+UnaryMathFunction CreateTranscendentalFunction(TranscendentalCache::Type type) {
   switch (type) {
     case TranscendentalCache::SIN: return &sin;
     case TranscendentalCache::COS: return &cos;
@@ -50,6 +49,10 @@ TranscendentalFunction CreateTranscendentalFunction(
 }
 
 
+UnaryMathFunction CreateSqrtFunction() {
+  return &sqrt;
+}
+
 // -------------------------------------------------------------------------
 // Platform-specific RuntimeCallHelper functions.