decl.c, [...]: Replace tree_low_cst (..., 1) with tree_to_uhwi throughout.

decl.c, [...]: Replace tree_low_cst (..., 1) with tree_to_uhwi throughout.

gcc/ada/
	* gcc-interface/decl.c, gcc-interface/utils.c, gcc-interface/utils2.c:
	Replace tree_low_cst (..., 1) with tree_to_uhwi throughout.

gcc/c-family/
	* c-common.c, c-cppbuiltin.c: Replace tree_low_cst (..., 1) with
	tree_to_uhwi throughout.

gcc/c/
	* c-decl.c, c-typeck.c: Replace tree_low_cst (..., 1) with
	tree_to_uhwi throughout.

gcc/cp/
	* call.c, class.c, decl.c, error.c: Replace tree_low_cst (..., 1) with
	tree_to_uhwi throughout.

gcc/objc/
	* objc-encoding.c: Replace tree_low_cst (..., 1) with tree_to_uhwi
	throughout.

gcc/
	* alias.c, asan.c, builtins.c, cfgexpand.c, cgraph.c,
	config/aarch64/aarch64.c, config/alpha/predicates.md,
	config/arm/arm.c, config/darwin.c, config/epiphany/epiphany.c,
	config/i386/i386.c, config/iq2000/iq2000.c, config/m32c/m32c-pragma.c,
	config/mep/mep-pragma.c, config/mips/mips.c,
	config/picochip/picochip.c, config/rs6000/rs6000.c, cppbuiltin.c,
	dbxout.c, dwarf2out.c, emit-rtl.c, except.c, expr.c, fold-const.c,
	function.c, gimple-fold.c, godump.c, ipa-cp.c, ipa-prop.c, omp-low.c,
	predict.c, sdbout.c, stor-layout.c, trans-mem.c, tree-object-size.c,
	tree-sra.c, tree-ssa-ccp.c, tree-ssa-forwprop.c,
	tree-ssa-loop-ivcanon.c, tree-ssa-loop-ivopts.c, tree-ssa-loop-niter.c,
	tree-ssa-loop-prefetch.c, tree-ssa-strlen.c, tree-stdarg.c,
	tree-switch-conversion.c, tree-vect-generic.c, tree-vect-loop.c,
	tree-vect-patterns.c, tree-vrp.c, tree.c, tsan.c, ubsan.c, varasm.c:
	Replace tree_low_cst (..., 1) with tree_to_uhwi throughout.

From-SVN: r204961