Remove duplicate translation unit names

Builds/VisualStudio2015/RippleD.vcxproj

@@ -3370,7 +3370,7 @@
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='debug.classic|x64'">True</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='release.classic|x64'">True</ExcludedFromBuild>
     </ClCompile>
-    <ClCompile Include="..\..\src\ripple\unity\ed25519.c">
+    <ClCompile Include="..\..\src\ripple\unity\ed25519_donna.c">
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='debug.classic|x64'">..\..\src\ed25519-donna;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='debug|x64'">..\..\src\ed25519-donna;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='release.classic|x64'">..\..\src\ed25519-donna;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

Builds/VisualStudio2015/RippleD.vcxproj.filters

@@ -3993,7 +3993,7 @@
     <ClCompile Include="..\..\src\ripple\unity\crypto.cpp">
       <Filter>ripple\unity</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\ripple\unity\ed25519.c">
+    <ClCompile Include="..\..\src\ripple\unity\ed25519_donna.c">
       <Filter>ripple\unity</Filter>
     </ClCompile>
     <ClCompile Include="..\..\src\ripple\unity\json.cpp">

CMakeLists.txt

@@ -382,7 +382,7 @@ endif()
 add_with_props(rippled_src_all src/sqlite/sqlite_unity.c
   ${extra_props})
 
-add_with_props(rippled_src_all src/ripple/unity/ed25519.c
+add_with_props(rippled_src_all src/ripple/unity/ed25519_donna.c
   -I"${CMAKE_SOURCE_DIR}/"src/ed25519-donna)
 
 if (is_gcc)

SConstruct

@@ -1178,7 +1178,7 @@ for tu_style in ['classic', 'unity']:
                 cc_flags = {}
 
             object_builder.add_source_files(
-                'src/ripple/unity/ed25519.c',
+                'src/ripple/unity/ed25519_donna.c',
                 CPPPATH=[
                     'src/ed25519-donna',
                 ]