Fix all uninitialized variable warnings (C26495)

Source/Core/Common/Config/ConfigInfo.h

@@ -23,7 +23,7 @@ using UnderlyingType = typename std::enable_if_t<std::is_enum<T>{}, std::underly
 
 struct Location
 {
-  System system;
+  System system{};
   std::string section;
   std::string key;
 

Source/Core/Common/FileUtil.h

@@ -85,11 +85,11 @@ enum
 
 namespace File
 {
-// FileSystem tree node/
+// FileSystem tree node
 struct FSTEntry
 {
-  bool isDirectory;
-  u64 size;                  // File length, or for directories, recursive count of children
+  bool isDirectory = false;
+  u64 size = 0;              // File length, or for directories, recursive count of children
   std::string physicalName;  // Name on disk
   std::string virtualName;   // Name in FST names table
   std::vector<FSTEntry> children;

Source/Core/Common/FixedSizeQueue.h

@@ -78,7 +78,7 @@ public:
   bool empty() const noexcept { return size() == 0; }
 
 private:
-  std::array<T, N> storage;
+  std::array<T, N> storage{};
   int head = 0;
   int tail = 0;
   // Sacrifice 4 bytes for a simpler implementation. may optimize away in the future.

Source/Core/Common/IOFile.h

@@ -59,9 +59,9 @@ public:
   }
 
   template <typename T, std::size_t N>
-  bool ReadArray(std::array<T, N>& elements, size_t* num_read = nullptr)
+  bool ReadArray(std::array<T, N>* elements, size_t* num_read = nullptr)
   {
-    return ReadArray(elements.data(), elements.size(), num_read);
+    return ReadArray(elements->data(), elements->size(), num_read);
   }
 
   template <typename T, std::size_t N>

Source/Core/Common/LinearDiskCache.h

@@ -153,7 +153,7 @@ private:
                   std::min(Common::scm_rev_git_str.size(), sizeof(ver)));
     }
 
-    u32 id;
+    u32 id = 0;
     const u16 key_t_size = sizeof(K);
     const u16 value_t_size = sizeof(V);
     char ver[40] = {};
@@ -161,5 +161,5 @@ private:
   } m_header;
 
   File::IOFile m_file;
-  u32 m_num_entries;
+  u32 m_num_entries = 0;
 };

Source/Core/Common/Logging/ConsoleListener.h

@@ -14,5 +14,5 @@ public:
   void Log(Common::Log::LOG_LEVELS level, const char* text) override;
 
 private:
-  bool m_use_color;
+  bool m_use_color = false;
 };

Source/Core/Common/SPSCQueue.h

@@ -98,7 +98,7 @@ private:
         delete next_ptr;
     }
 
-    T current;
+    T current{};
     std::atomic<ElementPtr*> next;
   };