For Doubl erounding call C-function instead of attempting to inline it. Fixes issue 8760.

sdk/lib/scalarlist/simd128.dart

Index: sdk/lib/scalarlist/simd128.dart
===================================================================
--- sdk/lib/scalarlist/simd128.dart	(revision 19005)
+++ sdk/lib/scalarlist/simd128.dart	(working copy)
@@ -147,8 +147,7 @@
   /// Merge [trueValue] and [falseValue] based on [this]' bit mask:
   /// Select bit from [trueValue] when bit in [this] is on.
   /// Select bit from [falseValue] when bit in [this] is off.
-  Float32x4 select(Float32x4 trueValue,
-                          Float32x4 falseValue);
+  Float32x4 select(Float32x4 trueValue, Float32x4 falseValue);
 
   /// Returns a bit-wise copy of [this] as a [Float32x4].
   Float32x4 toFloat32x4();