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We previously used NoMem as dependency for the stores of parameters
whose address is taken. This was wrong as obviously other code inside
the inlined function may change the value which might make a dependency
necessary in case of loops.

This fixes firm-testsuite/opt/fehler228.c

This fixes opt/combo8.c.

Now mode_b behaves the same as integer modes, so use the same code to initialize the special values.

The removed special case used the same color anyway.

The new code in bitop_chain did not consider Add nodes that behaved like
logical ops.

This doesn't change anything, but let's gdb print ir_graph_properties
variables/member in a nicer way.

Note that for OO code you should use liboo which provides the same
features!

The rule that a rule becomes undefined if it has an undefined input is
only true if the node has no side effects.

This fixes opt/combo7.c

This fixes opt/fehler227.c.