build: Update glslang to e4821e

This includes applying a patch to glslang to revert glslang
commit a5c33d, which fixes a texel fetch problem that many IHV
drivers are not ready to cope with yet.

CMakeLists.txt

@@ -217,15 +217,15 @@ if (WIN32)
     add_library(Loader      STATIC IMPORTED)
     add_library(SPIRV-Tools STATIC IMPORTED)
 
-    find_library(GLSLANG_DLIB NAMES glslang
+    find_library(GLSLANG_DLIB NAMES glslangd
                  HINTS ${GLSLANG_DEBUG_SEARCH_PATH} )
-    find_library(OGLCompiler_DLIB NAMES OGLCompiler
+    find_library(OGLCompiler_DLIB NAMES OGLCompilerd
                  HINTS ${GLSLANG_DEBUG_SEARCH_PATH} )
-    find_library(OSDependent_DLIB NAMES OSDependent
+    find_library(OSDependent_DLIB NAMES OSDependentd
                  HINTS ${GLSLANG_DEBUG_SEARCH_PATH} )
-    find_library(HLSL_DLIB NAMES HLSL
+    find_library(HLSL_DLIB NAMES HLSLd
                  HINTS ${GLSLANG_DEBUG_SEARCH_PATH} )
-    find_library(SPIRV_DLIB NAMES SPIRV
+    find_library(SPIRV_DLIB NAMES SPIRVd
                  HINTS ${GLSLANG_DEBUG_SEARCH_PATH} )
     find_library(SPIRV_TOOLS_DLIB NAMES SPIRV-Tools
                  HINTS ${SPIRV_TOOLS_DEBUG_SEARCH_PATH} )

glslang_revert_a5c33d.patch.txt

@@ -0,0 +1,18 @@
+diff --git a/SPIRV/GlslangToSpv.cpp b/SPIRV/GlslangToSpv.cpp
+index dd11304..aebc986 100755
+--- a/SPIRV/GlslangToSpv.cpp
++++ b/SPIRV/GlslangToSpv.cpp
+@@ -2630,13 +2630,6 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
+             bias = true;
+     }
+ 
+-    // See if the sampler param should really be just the SPV image part
+-    if (cracked.fetch) {
+-        // a fetch needs to have the image extracted first
+-        if (builder.isSampledImage(params.sampler))
+-            params.sampler = builder.createUnaryOp(spv::OpImage, builder.getImageType(params.sampler), params.sampler);
+-    }
+-
+     // set the rest of the arguments
+ 
+     params.coords = arguments[1];

glslang_revision

@@ -1 +1 @@
-4678ca9dacfec7a084dbc69bbe568bdad6889f1b
+e4821e43c86d97bcf65fb07c1f70471b7102978d