switched SkSL's temporary 'highfloat' type back to 'float'

Bug: skia:
Change-Id: If0debae7318b6b5b4a7cb85d458996a09931127e
Reviewed-on: https://skia-review.googlesource.com/48760
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/tests/SkSLFPTest.cpp b/tests/SkSLFPTest.cpp
index 266169f..dc92795 100644
--- a/tests/SkSLFPTest.cpp
+++ b/tests/SkSLFPTest.cpp
@@ -250,9 +250,9 @@
          {"cpp section"});
     test(r,
          "@constructorParams { int x, float y, std::vector<float> z }"
-         "in highfloat w;"
+         "in float w;"
          "void main() {"
-         "sk_OutColor = highfloat4(1);"
+         "sk_OutColor = float4(1);"
          "}",
          *SkSL::ShaderCapsFactory::Default(),
          {
@@ -353,7 +353,7 @@
          "in uniform sampler2D image;"
          "in uniform colorSpaceXform colorXform;"
          "void main() {"
-         "sk_OutColor = sk_InColor * texture(image, highfloat2(0, 0), colorXform);"
+         "sk_OutColor = sk_InColor * texture(image, float2(0, 0), colorXform);"
          "}",
          *SkSL::ShaderCapsFactory::Default(),
          {
@@ -364,7 +364,7 @@
          },
          {
              "fragBuilder->codeAppendf(\"half4 _tmpVar1;%s = %s * %stexture(%s, "
-             "highfloat2(0.0, 0.0)).%s%s;\\n\", args.fOutputColor, args.fInputColor ? args.fInputColor : "
+             "float2(0.0, 0.0)).%s%s;\\n\", args.fOutputColor, args.fInputColor ? args.fInputColor : "
              "\"half4(1)\", fColorSpaceHelper.isValid() ? \"(_tmpVar1 = \" : \"\", "
              "fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(), "
              "fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(), "