Enable ILDASM for Windows

This enables building ILDASM with Cmake for Windows.
This ILDASM now depends on CoreCLR targeting cross-platform and thus I dropped some features like GUI/PDB -- default output is console.
Metadata related APIs in CoreCLR are directly exported, and used in ILDASM:
 MetaDataGetDispenser
 GetMetaDataInternalInterface
 GetMetaDataInternalInterfaceFromPublic
 GetMetaDataPublicInterfaceFromInternal
The code path is diverged by a definition FEATURE_CORECLR.
There are still Window specific components. Among others, resource file/dll generation is the one that should be ported.

Author: kyulee1

src/CMakeLists.txt

@@ -51,6 +51,7 @@ add_subdirectory(dlls)
 add_subdirectory(ToolBox)
 add_subdirectory(tools)
 add_subdirectory(unwinder)
+add_subdirectory(ildasm)
 
 if(WIN32)
   add_subdirectory(ipcman)

src/dlls/mscoree/mscorwks_ntdef.src

@@ -24,12 +24,11 @@ EXPORTS
         coreclr_initialize
         coreclr_shutdown
 
-#ifdef FEATURE_PREJIT
-        ; MetaDataGetDispenser is needed for nidump. We want nidump to work on non-debug
-        ; builds, but we don't want the API to be public, so export it by ordinal.
-        ; This ordinal is hard-coded in tools\nidump\nidump.cpp.
-        MetaDataGetDispenser                                @3 noname private
-#endif // FEATURE_PREJIT
+        ; il{d}asm
+        MetaDataGetDispenser
+        GetMetaDataInternalInterface
+        GetMetaDataInternalInterfaceFromPublic
+        GetMetaDataPublicInterfaceFromInternal
 
 #else //FEATURE_CORECLR 
 

src/ildasm/CMakeLists.txt

@@ -0,0 +1,4 @@
+if (WIN32)
+    add_subdirectory(exe)
+    add_subdirectory(rcdll)
+endif()