Relax a stringToDouble test for, OSX AppleClang 9.1

Test/baseResults/stringToDouble.vert.out

@@ -108,7 +108,7 @@ Shader version: 460
 0:26        move second child to first child ( temp double)
 0:26          'e11' ( temp double)
 0:26          Constant:
-0:26            9.8813129168249e-324
+0:26            1.0000000000000e-307
 0:27      Sequence
 0:27        move second child to first child ( temp double)
 0:27          'e12' ( temp double)
@@ -561,7 +561,7 @@ Shader version: 460
 0:26        move second child to first child ( temp double)
 0:26          'e11' ( temp double)
 0:26          Constant:
-0:26            9.8813129168249e-324
+0:26            1.0000000000000e-307
 0:27      Sequence
 0:27        move second child to first child ( temp double)
 0:27          'e12' ( temp double)

Test/stringToDouble.vert

@@ -23,7 +23,7 @@ void main()
     float e8 = 1e-16;
     double e9 = 1e100;
     double e10 = 1e+308;
-    double e11 = 1e-323;
+    double e11 = 1e-307; // Was 1e-323, but that's flushed to zero sometimes. 1e-308 can be flushed to 0.
     double e12 = 1e+309;
     double e13 = 1e-324;
     double e24 = 1e+999;