A fix for IsDynamic() case.

Author: VSadov

src/coreclr/vm/assembly.cpp

@@ -191,7 +191,7 @@ void Assembly::Init(AllocMemTracker *pamTracker, LoaderAllocator *pLoaderAllocat
 
     PEAssembly* pPEAssembly = GetManifestFile();
 
-    // Module::Create will initialize R2R support
+    // "Module::Create" will initialize R2R support, if there is an R2R header.
     // make sure the PE is loaded or R2R will be disabled.
     pPEAssembly->EnsureLoaded();
 
@@ -214,7 +214,7 @@ void Assembly::Init(AllocMemTracker *pamTracker, LoaderAllocator *pLoaderAllocat
     //  loading it entirely.
     //CacheFriendAssemblyInfo();
 
-    if (IsCollectible())
+    if (IsCollectible() && !pPEAssembly->IsDynamic())
     {
         COUNT_T size;
         BYTE* start = (BYTE*)pPEAssembly->GetLoadedImageContents(&size);

src/coreclr/vm/peimagelayout.cpp

@@ -402,7 +402,6 @@ ConvertedImageLayout::ConvertedImageLayout(FlatImageLayout* source)
     bool relocationMustWriteCopy = false;
     void* loadedImage = NULL;
 
-    // TODO: VS deal with LOG things.
     LOG((LF_LOADER, LL_INFO100, "PEImage: Opening manually mapped stream\n"));
 
 #ifdef TARGET_WINDOWS