renamed PinnedObjectToPointer

src/Compilers/CSharp/Portable/Binder/Semantics/Conversions/Conversion.cs

@@ -236,7 +236,7 @@ internal static Conversion GetTrivialConversion(ConversionKind kind)
         internal static Conversion InterpolatedString => new Conversion(ConversionKind.InterpolatedString);
         internal static Conversion Deconstruction => new Conversion(ConversionKind.Deconstruction);
         internal static Conversion IdentityValue => new Conversion(ConversionKind.IdentityValue);
-        internal static Conversion ObjectToPointer => new Conversion(ConversionKind.ObjectToPointer);
+        internal static Conversion PinnedObjectToPointer => new Conversion(ConversionKind.PinnedObjectToPointer);
 
         // trivial conversions that could be underlying in nullable conversion
         // NOTE: tuple conversions can be underlying as well, but they are not trivial 

src/Compilers/CSharp/Portable/Binder/Semantics/Conversions/ConversionKind.cs

@@ -49,9 +49,9 @@ internal enum ConversionKind : byte
         // do not become exposed to mutations if used as receivers of struct methods.
         IdentityValue,
 
-        // ObjectToPointer is not directly a part of the language
+        // PinnedObjectToPointer is not directly a part of the language
         // It is used by lowering of "fixed" statements to represent conversion of an object reference (O) to an unmanaged pointer (*)
         // The conversion is unsafe and makes sense only if (O) is pinned.
-        ObjectToPointer,
+        PinnedObjectToPointer,
     }
 }

src/Compilers/CSharp/Portable/CodeGen/EmitConversion.cs

@@ -111,7 +111,7 @@ private void EmitConversion(BoundConversion conversion)
 
                     _builder.EmitNumericConversion(fromPredefTypeKind, toPredefTypeKind, conversion.Checked);
                     break;
-                case ConversionKind.ObjectToPointer:
+                case ConversionKind.PinnedObjectToPointer:
                     // same representation, but stop GC tracking
                     _builder.EmitOpCode(ILOpCode.Conv_u);
                     break;

src/Compilers/CSharp/Portable/Lowering/LocalRewriter/LocalRewriter_FixedStatement.cs

@@ -320,7 +320,7 @@ public override BoundNode VisitFixedLocalCollectionInitializer(BoundFixedLocalCo
             var addr = factory.Convert(
                  fixedInitializer.ElementPointerType,
                  factory.Local(pinnedTemp),
-                 Conversion.ObjectToPointer);
+                 Conversion.PinnedObjectToPointer);
 
             var convertedStringTemp = factory.Convert(
                 localType,