Fix compile in Visual Studio 2008:

* isfinite is not defined, in Blender code we use 'finite' instead

source/blender/editors/mesh/editmesh_rip.c

@@ -76,14 +76,14 @@ static float edbm_rip_edgedist_squared(ARegion *ar, float mat[4][4],
 		const float dist_2d = len_v2v2(vec1, vec2);
 		if (dist_2d > FLT_EPSILON) {
 			const float dist = inset / dist_2d;
-			BLI_assert(isfinite(dist));
+			BLI_assert(finite(dist));
 			interp_v2_v2v2(vec1, vec1, vec2, dist);
 			interp_v2_v2v2(vec2, vec2, vec1, dist);
 		}
 	}
 
 	dist_sq = dist_squared_to_line_segment_v2(mvalf, vec1, vec2);
-	BLI_assert(isfinite(dist_sq));
+	BLI_assert(finite(dist_sq));
 
 	return dist_sq;
 }