Fix compiler compatibility issue with older Xcode versions

Source/SPFavoriteTextFieldCell.h

@@ -33,6 +33,7 @@
@interface SPFavoriteTextFieldCell : ImageAndTextCell
{
	BOOL drawsDividerUnderCell;
	NSColor *labelColor;
}

- (BOOL)drawsDividerUnderCell;

Source/SPFavoriteTextFieldCell.m

@@ -78,22 +78,22 @@ - (void)setDrawsDividerUnderCell:(BOOL)drawsDivider

- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
	if([self labelColor]) {
	if(labelColor) {
		CGFloat round = (cellFrame.size.height/2);
		NSBezierPath *bg = [NSBezierPath bezierPathWithRoundedRect:cellFrame xRadius:round yRadius:round];
		
		if(isOSAtLeast10_10_0()) {
			CGFloat h,s,b,a;
			[[self labelColor] getHue:&h saturation:&s brightness:&b alpha:&a];
			[labelColor getHue:&h saturation:&s brightness:&b alpha:&a];
			
			[[NSColor colorWithCalibratedHue:h saturation:s*1.21 brightness:b*1.1 alpha:a] set];
			[bg fill];
		}
		else {
			NSGradient * gradient = [[NSGradient alloc] initWithColorsAndLocations:
									 [[self labelColor] highlightWithLevel:0.33], 0.0,
									 [self labelColor], 0.5,
									 [[self labelColor] shadowWithLevel:0.15], 1.0, nil];
									 [labelColor highlightWithLevel:0.33], 0.0,
									  labelColor, 0.5,
									 [labelColor shadowWithLevel:0.15], 1.0, nil];
			[gradient drawInBezierPath:bg angle:90.0];
			[gradient release];
		}