tree.h (DECL_CHAIN): Define.

gcc/
	* tree.h (DECL_CHAIN): Define.
	* alias.c: Carefully replace TREE_CHAIN with DECL_CHAIN.
	* c-decl.c: Likewise.
	* c-parser.c: Likewise.
	* c-typeck.c: Likewise.
	* cfgexpand.c: Likewise.
	* cgraph.c: Likewise.
	* cgraphunit.c: Likewise.
	* combine.c: Likewise.
	* config/alpha/alpha.c: Likewise.
	* config/arm/arm.c: Likewise.
	* config/frv/frv.c: Likewise.
	* config/i386/i386.c: Likewise.
	* config/i386/winnt-cxx.c: Likewise.
	* config/ia64/ia64.c: Likewise.
	* config/iq2000/iq2000.c: Likewise.
	* config/mep/mep.c: Likewise.
	* config/mips/mips.c: Likewise.
	* config/pa/som.h: Likewise.
	* config/rs6000/rs6000.c: Likewise.
	* config/s390/s390.c: Likewise.
	* config/sh/sh.c: Likewise.
	* config/sh/symbian-cxx.c: Likewise.
	* config/sparc/sparc.c: Likewise.
	* config/spu/spu.c: Likewise.
	* config/stormy16/stormy16.c: Likewise.
	* config/vxworks.c: Likewise.
	* config/xtensa/xtensa.c: Likewise.
	* coverage.c: Likewise.
	* dbxout.c: Likewise.
	* dwarf2out.c: Likewise.
	* emit-rtl.c: Likewise.
	* expr.c: Likewise.
	* function.c: Likewise.
	* gimple-low.c: Likewise.
	* gimple-pretty-print.c: Likewise.
	* gimplify.c: Likewise.
	* integrate.c: Likewise.
	* ipa-inline.c: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-split.c: Likewise.
	* ipa-struct-reorg.c: Likewise.
	* ipa-type-escape.c: Likewise.
	* langhooks.c: Likewise.
	* lto-cgraph.c: Likewise.
	* omp-low.c: Likewise.
	* stor-layout.c: Likewise.
	* tree-cfg.c: Likewise.
	* tree-complex.c: Likewise.
	* tree-dfa.c: Likewise.
	* tree-dump.c: Likewise.
	* tree-inline.c: Likewise.
	* tree-mudflap.c: Likewise.
	* tree-nested.c: Likewise.
	* tree-object-size.c: Likewise.
	* tree-pretty-print.c: Likewise.
	* tree-sra.c: Likewise.
	* tree-ssa-live.c: Likewise.
	* tree-ssa-loop-niter.c: Likewise.
	* tree-ssa-math-opts.c: Likewise.
	* tree-ssa-reassoc.c: Likewise.
	* tree-ssa-sccvn.c: Likewise.
	* tree-ssa-structalias.c: Likewise.
	* tree-tailcall.c: Likewise.
	* tree-vrp.c: Likewise.
	* tree.c: Likewise.
	* var-tracking.c: Likewise.
	* varasm.c: Likewise.

gcc/ada/
	* gcc-interface/decl.c: Carefully replace TREE_CHAIN with DECL_CHAIN.
	* gcc-interface/trans.c: Likewise.
	* gcc-interface/utils.c: Likewise.
	* gcc-interface/utils2.c: Likewise.

gcc/c-family/
	* c-common.c: Carefully replace TREE_CHAIN with DECL_CHAIN.
	* c-format.c: Likewise.

gcc/cp/
	* cp-tree.h: Carefully replace TREE_CHAIN with DECL_CHAIN.
	* call.c: Likewise.
	* class.c: Likewise.
	* cp-gimplify.c: Likewise.
	* decl.c: Likewise.
	* decl2.c: Likewise.
	* init.c: Likewise.
	* mangle.c: Likewise.
	* name-lookup.c: Likewise.
	* optimize.c: Likewise.
	* parser.c: Likewise.
	* pt.c: Likewise.
	* rtti.c: Likewise.
	* search.c: Likewise.
	* semantics.c: Likewise.
	* typeck.c: Likewise.
	* typeck2.c: Likewise.

gcc/fortran/
	* f95-lang.c: Carefully replace TREE_CHAIN with DECL_CHAIN.
	* trans-common.c: Likewise.
	* trans-decl.c: Likewise.
	* trans-types.c: Likewise.
	* trans.c: Likewise.

gcc/java/
	* java-tree.h: Carefully replace TREE_CHAIN with DECL_CHAIN.
	* boehm.c: Likewise.
	* class.c: Likewise.
	* decl.c: Likewise.
	* expr.c: Likewise.
	* jcf-parse.c: Likewise.
	* typeck.c: Likewise.
	* verify-glue.c: Likewise.

gcc/objc/
	* objc-act.c: Carefully replace TREE_CHAIN with DECL_CHAIN.

gcc/testsuite/
	* g++.dg/plugin/attribute_plugin.c: Carefully replace TREE_CHAIN
	with DECL_CHAIN.

From-SVN: r162223