Add Remaining 2 parameter GLSL float methods.

This CL adds conversions for the remaining GLSL methods which accept
two float parameters.

Bug: tint:5
Change-Id: I545567f67baaae62d5a85d3d7cacc64571d7a8e8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/20020
Reviewed-by: David Neto <dneto@google.com>

src/type_determiner.cc

diff --git a/src/type_determiner.cc b/src/type_determiner.cc
index af0998e..9be841c 100644
--- a/src/type_determiner.cc
+++ b/src/type_determiner.cc
@@ -686,7 +686,9 @@
     // Length returns a scalar of the same type as the parameter.
     return result_type->is_float_scalar() ? result_type
                                           : result_type->AsVector()->type();
-  } else if (name == "atan2") {
+  } else if (name == "atan2" || name == "pow" || name == "fmin" ||
+             name == "fmax" || name == "step" || name == "reflect" ||
+             name == "nmin" || name == "nmax") {
     if (params.size() != 2) {
       error_ = "incorrect number of parameters for " + name +
                ". Expected 2 got " + std::to_string(params.size());
@@ -705,6 +707,20 @@
 
     if (name == "atan2") {
       *id = GLSLstd450Atan2;
+    } else if (name == "pow") {
+      *id = GLSLstd450Pow;
+    } else if (name == "fmin") {
+      *id = GLSLstd450FMin;
+    } else if (name == "fmax") {
+      *id = GLSLstd450FMax;
+    } else if (name == "step") {
+      *id = GLSLstd450Step;
+    } else if (name == "reflect") {
+      *id = GLSLstd450Reflect;
+    } else if (name == "nmin") {
+      *id = GLSLstd450NMin;
+    } else if (name == "nmax") {
+      *id = GLSLstd450NMax;
     }
 
     return params[0]->result_type();

src/type_determiner_test.cc

diff --git a/src/type_determiner_test.cc b/src/type_determiner_test.cc
index 0a2427d..4190218 100644
--- a/src/type_determiner_test.cc
+++ b/src/type_determiner_test.cc
@@ -1901,7 +1901,14 @@
 
 INSTANTIATE_TEST_SUITE_P(TypeDeterminerTest,
                          ImportData_TwoParamTest,
-                         testing::Values(GLSLData{"atan2", GLSLstd450Atan2}));
+                         testing::Values(GLSLData{"atan2", GLSLstd450Atan2},
+                                         GLSLData{"pow", GLSLstd450Pow},
+                                         GLSLData{"fmin", GLSLstd450FMin},
+                                         GLSLData{"fmax", GLSLstd450FMax},
+                                         GLSLData{"step", GLSLstd450Step},
+                                         GLSLData{"reflect", GLSLstd450Reflect},
+                                         GLSLData{"nmin", GLSLstd450NMin},
+                                         GLSLData{"nmax", GLSLstd450NMax}));
 
 }  // namespace
 }  // namespace tint