Changed the renaming not to remove the underscores from all-capital names.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator/Passes/RenamePass.cs

@@ -128,7 +128,7 @@ namespace CppSharp.Passes
             declarations.AddRange(decl.Namespace.Variables);
             declarations.AddRange(from typedefDecl in decl.Namespace.Typedefs
                                   let pointerType = typedefDecl.Type.Desugar() as PointerType
-                                  where pointerType != null && pointerType.Pointee is FunctionType
+                                  where pointerType != null && pointerType.GetFinalPointee() is FunctionType
                                   select typedefDecl);
             var specialization = decl as ClassTemplateSpecialization;
             if (specialization != null)
@@ -347,6 +347,9 @@ namespace CppSharp.Passes
             if (sb[0] == '@')
                 sb.Remove(0, 1);
 
+            // do not remove underscores from ALL_CAPS names
+            if (!decl.Name.Where(char.IsLetter).All(char.IsUpper))
+            {
                 for (int i = sb.Length - 1; i >= 0; i--)
                 {
                     if (sb[i] == '_' && i < sb.Length - 1)
@@ -355,6 +358,7 @@ namespace CppSharp.Passes
                         sb.Remove(i, 1);
                     }
                 }
+            }
 
             var @class = decl as Class;
             switch (pattern)

tests/CSharp/CSharp.Tests.cs

@@ -19,6 +19,7 @@ public unsafe class CSharpTests : GeneratorTestFixture
     [Test]
     public void TestUncompilableCode()
     {
+        ALLCAPS_UNDERSCORES a;
         new ForceCreationOfInterface().Dispose();
         new InheritsProtectedVirtualFromSecondaryBase().Dispose();
         new InheritanceBuffer().Dispose();
@@ -285,11 +286,11 @@ public unsafe class CSharpTests : GeneratorTestFixture
     [Test]
     public void TestPrimarySecondaryBase()
     {
-        var a = new MIA0();
+        var a = new MI_A0();
         var resa = a.Get();
         Assert.That(resa, Is.EqualTo(50));
 
-        var c = new MIC();
+        var c = new MI_C();
         var res = c.Get();
         Assert.That(res, Is.EqualTo(50));
     }

tests/CSharp/CSharp.h

@@ -982,3 +982,5 @@ public:
 };
 
 extern const unsigned char DLL_API variableWithFixedPrimitiveArray[2];
+
+typedef void (*ALLCAPS_UNDERSCORES)(int i);