Merge "[cc] Remove deprecated clang flag for auto-var-init"

		// Automatically initialize any uninitialized stack variables.

		// Prefer zero-init if multiple options are set.

		if ctx.Config().IsEnvTrue("AUTO_ZERO_INITIALIZE") {

			flags = append(flags, "-ftrivial-auto-var-init=zero -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang -Wno-unused-command-line-argument")

			flags = append(flags, "-ftrivial-auto-var-init=zero")

		} else if ctx.Config().IsEnvTrue("AUTO_PATTERN_INITIALIZE") {

			flags = append(flags, "-ftrivial-auto-var-init=pattern")

		} else if ctx.Config().IsEnvTrue("AUTO_UNINITIALIZE") {

			flags = append(flags, "-ftrivial-auto-var-init=uninitialized")

		} else {

			// Default to zero initialization.

			flags = append(flags, "-ftrivial-auto-var-init=zero -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang -Wno-unused-command-line-argument")

			flags = append(flags, "-ftrivial-auto-var-init=zero")

		}

		// Workaround for ccache with clang.