Kernel: Move the VM Range class to its own files

Kernel/VM/RangeAllocator.h

@@ -26,57 +26,13 @@
 
 #pragma once
 
-#include <AK/String.h>
 #include <AK/Traits.h>
 #include <AK/Vector.h>
 #include <Kernel/SpinLock.h>
-#include <Kernel/VirtualAddress.h>
+#include <Kernel/VM/Range.h>
 
 namespace Kernel {
 
-class Range {
-    friend class RangeAllocator;
-
-public:
-    Range() = delete;
-    Range(VirtualAddress base, size_t size)
-        : m_base(base)
-        , m_size(size)
-    {
-    }
-
-    VirtualAddress base() const { return m_base; }
-    size_t size() const { return m_size; }
-    bool is_valid() const { return !m_base.is_null(); }
-
-    bool contains(VirtualAddress vaddr) const { return vaddr >= base() && vaddr < end(); }
-
-    VirtualAddress end() const { return m_base.offset(m_size); }
-
-    bool operator==(const Range& other) const
-    {
-        return m_base == other.m_base && m_size == other.m_size;
-    }
-
-    bool contains(VirtualAddress base, size_t size) const
-    {
-        if (base.offset(size) < base)
-            return false;
-        return base >= m_base && base.offset(size) <= end();
-    }
-
-    bool contains(const Range& other) const
-    {
-        return contains(other.base(), other.size());
-    }
-
-    Vector<Range, 2> carve(const Range&);
-
-private:
-    VirtualAddress m_base;
-    size_t m_size { 0 };
-};
-
 class RangeAllocator {
 public:
     RangeAllocator();