CogVM source as per VMMaker.oscog-eem.3313

Have the copyBits primitives answer #'bad receiver' if loadBitBltFrom:warping:
fails.  Speed up noSource/noHalftone setup there-in.

Fix the ClipboardExtendedPlugin on Mac & Win32 so that multiple invocations of
addClipboardData:dataFormat: allow different formats to be pasted at once.
Regenerate the unchanged src/plugins/ClipboardExtendedPlugin/ClipboardExtendedPlugin.c
so that the image can check the version number to see if the new support exists.

platforms/iOS/plugins/ClipboardExtendedPlugin/sqMacExtendedClipboard.m

@@ -36,9 +36,7 @@
 void
 sqPasteboardClear(CLIPBOARDTYPE inPasteboard)
 {
-    NSArray *arrayOfTypes = [NSArray array];
-
-    [inPasteboard declareTypes: arrayOfTypes owner: nil];
+    [inPasteboard clearContents];
 }
 
 sqInt
@@ -81,7 +79,7 @@
     NSData* data = AUTORELEASEOBJ([[NSData alloc ] initWithBytes: inData length: dataLength]);
     NSArray *arrayOfTypes = @[formatType];
 
-    [inPasteboard declareTypes: arrayOfTypes owner: nil];
+    [inPasteboard addTypes: arrayOfTypes owner: nil];
 	int ok = true;
 	@try {
 		ok = [inPasteboard setData: data forType: formatType];

platforms/win32/plugins/ClipboardExtendedPlugin/sqWin32ExtendedClipboard.c

@@ -88,7 +88,7 @@ void
 sqPasteboardPutItemFlavordatalengthformatType(CLIPBOARDTYPE inPasteboard, char *inData, sqInt dataLength, sqInt format)
 {
 	HANDLE globalMem;
-	int nullTerminationBytes = 0;
+	int nullTerminationBytes = 0, okSet, okClose;
 
 	if (dataLength <= 0) {
 		interpreterProxy->primitiveFailFor(PrimErrBadArgument);
@@ -181,14 +181,12 @@ sqPasteboardPutItemFlavordatalengthformatType(CLIPBOARDTYPE inPasteboard, char *
 		}
 	}
 	GlobalUnlock(globalMem);
-	(void)EmptyClipboard();
-	if (!SetClipboardData((UINT)format, globalMem)) {
-		CloseClipboard();
+	okSet = SetClipboardData((UINT)format, globalMem);
+	okClose = CloseClipboard();
+	iif (!okSet || !okClose) {
 		GlobalFree(globalMem);
 		interpreterProxy->primitiveFailFor(PrimErrOperationFailed);
-		return;
 	}
-	CloseClipboard();
 }
 
 sqInt