[571095] Considered any base types in connection coloring

With this change now the connection color is correct also when the
source is of an any type that has a determined color (e.g., ANY_REAL).

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=571095
Change-Id: I8661b0915801a31d01787c3cd6b61a6a59046f53
1 file changed