gl_shader_disk_cache: Address feedback

src/video_core/renderer_opengl/gl_shader_disk_cache.cpp

@@ -285,18 +285,20 @@ std::optional<ShaderDiskCacheDecompiled> ShaderDiskCacheOpenGL::LoadDecompiledEn
     if (!LoadObjectFromPrecompiled(code_size)) {
         return {};
     }
-    std::vector<u8> code(code_size);
+
+    std::string code(code_size, '\0');
     if (!LoadArrayFromPrecompiled(code.data(), code.size())) {
         return {};
     }
 
     ShaderDiskCacheDecompiled entry;
-    entry.code = std::string(reinterpret_cast<const char*>(code.data()), code_size);
+    entry.code = std::move(code);
 
     u32 const_buffers_count{};
     if (!LoadObjectFromPrecompiled(const_buffers_count)) {
         return {};
     }
+
     for (u32 i = 0; i < const_buffers_count; ++i) {
         u32 max_offset{};
         u32 index{};
@@ -312,6 +314,7 @@ std::optional<ShaderDiskCacheDecompiled> ShaderDiskCacheOpenGL::LoadDecompiledEn
     if (!LoadObjectFromPrecompiled(samplers_count)) {
         return {};
     }
+
     for (u32 i = 0; i < samplers_count; ++i) {
         u64 offset{};
         u64 index{};

src/video_core/renderer_opengl/gl_shader_disk_cache.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <bitset>
 #include <optional>
 #include <string>
 #include <tuple>
@@ -93,7 +94,7 @@ namespace std {
 
 template <>
 struct hash<OpenGL::BaseBindings> {
-    std::size_t operator()(const OpenGL::BaseBindings& bindings) const {
+    std::size_t operator()(const OpenGL::BaseBindings& bindings) const noexcept {
         return static_cast<std::size_t>(bindings.cbuf) ^
                (static_cast<std::size_t>(bindings.gmem) << 8) ^
                (static_cast<std::size_t>(bindings.sampler) << 16) ^
@@ -103,7 +104,7 @@ struct hash<OpenGL::BaseBindings> {
 
 template <>
 struct hash<OpenGL::ProgramVariant> {
-    std::size_t operator()(const OpenGL::ProgramVariant& variant) const {
+    std::size_t operator()(const OpenGL::ProgramVariant& variant) const noexcept {
         return std::hash<OpenGL::BaseBindings>()(variant.base_bindings) ^
                std::hash<OpenGL::TextureBufferUsage>()(variant.texture_buffer_usage) ^
                (static_cast<std::size_t>(variant.primitive_mode) << 6);