[lldb] Implement GetValueTypeFromAddressType

Value::ValueType is a superset of AddressType. Add a function to
convert an AddressType into a Value::ValueType.

Differential Revision: https://reviews.llvm.org/D150826

(cherry picked from commit 8fe9718)

Author: augusto2112

lldb/include/lldb/Core/Value.h

@@ -145,6 +145,8 @@ class Value {
 
   void Clear();
 
+  static ValueType GetValueTypeFromAddressType(AddressType address_type);
+
 protected:
   Scalar m_value;
   CompilerType m_compiler_type;

lldb/source/Core/Value.cpp

@@ -120,6 +120,20 @@ AddressType Value::GetValueAddressType() const {
   return eAddressTypeInvalid;
 }
 
+Value::ValueType Value::GetValueTypeFromAddressType(AddressType address_type) {
+  switch (address_type) {
+    case eAddressTypeFile:
+      return Value::ValueType::FileAddress;
+    case eAddressTypeLoad:
+      return Value::ValueType::LoadAddress;
+    case eAddressTypeHost:
+      return Value::ValueType::HostAddress;
+    case eAddressTypeInvalid:
+      return Value::ValueType::Invalid;
+  }
+  llvm_unreachable("Unexpected address type!");
+}
+
 RegisterInfo *Value::GetRegisterInfo() const {
   if (m_context_type == ContextType::RegisterInfo)
     return static_cast<RegisterInfo *>(m_context);