Pure Texture to Sampled Texture Transform

Adds a transformation step to the post processing step.
Two modes are available:
1) keep
- Keeps samplers, textures and sampled textures as is
2) transform pure texture into sampled texture and remove pure samplers
- removes all pure samplers
- transforms all pure textures into its sampled counter part

Change-Id: If54972e8052961db66c23f4b7e719d363cf6edbd

gtests/Spv.FromFile.cpp

@@ -75,6 +75,7 @@ using CompileVulkanToSpirvTestAMD = GlslangTest<::testing::TestWithParam<std::st
 #ifdef NV_EXTENSIONS
 using CompileVulkanToSpirvTestNV = GlslangTest<::testing::TestWithParam<std::string>>;
 #endif
+using CompileUpgradeTextureToSampledTextureAndDropSamplersTest = GlslangTest<::testing::TestWithParam<std::string>>;
 
 // Compiling GLSL to SPIR-V under Vulkan semantics. Expected to successfully
 // generate SPIR-V.
@@ -172,6 +173,15 @@ TEST_P(CompileVulkanToSpirvTestNV, FromFile)
 }
 #endif
 
+TEST_P(CompileUpgradeTextureToSampledTextureAndDropSamplersTest, FromFile)
+{
+    loadCompileUpgradeTextureToSampledTextureAndDropSamplersAndCheck(GlobalTestSettings.testRoot,
+                                                                     GetParam(),
+                                                                     Source::GLSL,
+                                                                     Semantics::Vulkan,
+                                                                     Target::Spv);
+}
+
 // clang-format off
 INSTANTIATE_TEST_CASE_P(
     Glsl, CompileVulkanToSpirvTest,
@@ -407,6 +417,14 @@ INSTANTIATE_TEST_CASE_P(
 FileNameAsCustomTestSuffix
 );
 #endif
+
+INSTANTIATE_TEST_CASE_P(
+    Glsl, CompileUpgradeTextureToSampledTextureAndDropSamplersTest,
+    ::testing::ValuesIn(std::vector<std::string>({
+      "spv.texture.sampler.transform.frag",
+    })),
+    FileNameAsCustomTestSuffix
+);
 // clang-format on
 
 }  // anonymous namespace