This patch cleans up a little the class initialization and fixes
it so that it works with the tree-ssa/gimplifier. What needed
to be done was to add a DECL_EXPR for the decl so that the
initializer was expanded and also we needed to ignore DECL_EXPR
in check_init as nobody else in the java front-end uses it and
the variable was only a scaler type with a constant initializer.
I also think this optimization can now be turned on for class file
to native compiling as we now do it function at a time compiling for
them (I think we don't do unit-at-a-time yet though) but that is for
another patch.
Built on powerpc-darwin. I am in the middle of testing it. OK if
everthing passes?