misc: chore: Use explicit types & fix object creation

src/Ryujinx.Cpu/AppleHv/HvAddressSpace.cs

@@ -29,7 +29,7 @@ namespace Ryujinx.Cpu.AppleHv
 
         public HvAddressSpace(MemoryBlock backingMemory, ulong asSize)
         {
-            (_asBase, var ipaAllocator) = HvVm.CreateAddressSpace(backingMemory);
+            (_asBase, HvIpaAllocator ipaAllocator) = HvVm.CreateAddressSpace(backingMemory);
             _backingSize = backingMemory.Size;
 
             _userRange = new HvAddressSpaceRange(ipaAllocator);

src/Ryujinx.Cpu/AppleHv/HvMemoryBlockAllocator.cs

@@ -45,7 +45,7 @@ namespace Ryujinx.Cpu.AppleHv
 
         public HvMemoryBlockAllocation Allocate(ulong size, ulong alignment)
         {
-            var allocation = Allocate(size, alignment, CreateBlock);
+            Allocation allocation = Allocate(size, alignment, CreateBlock);
 
             return new HvMemoryBlockAllocation(this, allocation.Block, allocation.Offset, allocation.Size);
         }

src/Ryujinx.Cpu/AppleHv/HvMemoryManager.cs

@@ -237,17 +237,17 @@ namespace Ryujinx.Cpu.AppleHv
                 return [];
             }
 
-            var guestRegions = GetPhysicalRegionsImpl(va, size);
+            List<MemoryRange> guestRegions = GetPhysicalRegionsImpl(va, size);
             if (guestRegions == null)
             {
                 return null;
             }
 
-            var regions = new HostMemoryRange[guestRegions.Count];
+            HostMemoryRange[] regions = new HostMemoryRange[guestRegions.Count];
 
             for (int i = 0; i < regions.Length; i++)
             {
-                var guestRegion = guestRegions[i];
+                MemoryRange guestRegion = guestRegions[i];
                 nint pointer = _backingMemory.GetPointer(guestRegion.Address, guestRegion.Size);
                 regions[i] = new HostMemoryRange((nuint)(ulong)pointer, guestRegion.Size);
             }
@@ -275,7 +275,7 @@ namespace Ryujinx.Cpu.AppleHv
 
             int pages = GetPagesCount(va, (uint)size, out va);
 
-            var regions = new List<MemoryRange>();
+            List<MemoryRange> regions = new();
 
             ulong regionStart = GetPhysicalAddressInternal(va);
             ulong regionSize = PageSize;

src/Ryujinx.Cpu/AppleHv/HvVcpu.cs

@@ -41,7 +41,7 @@ namespace Ryujinx.Cpu.AppleHv
             {
                 // Calculate our time delta in ticks based on the current clock frequency.
 
-                int result = TimeApi.mach_timebase_info(out var timeBaseInfo);
+                int result = TimeApi.mach_timebase_info(out MachTimebaseInfo timeBaseInfo);
 
                 Debug.Assert(result == 0);
 

src/Ryujinx.Cpu/AppleHv/HvVm.cs

@@ -38,7 +38,7 @@ namespace Ryujinx.Cpu.AppleHv
                 baseAddress = ipaAllocator.Allocate(block.Size, AsIpaAlignment);
             }
 
-            var rwx = HvMemoryFlags.Read | HvMemoryFlags.Write | HvMemoryFlags.Exec;
+            HvMemoryFlags rwx = HvMemoryFlags.Read | HvMemoryFlags.Write | HvMemoryFlags.Exec;
 
             HvApi.hv_vm_map((ulong)block.Pointer, baseAddress, block.Size, rwx).ThrowOnError();