ia32: Fix lea peephole not updating address mode variant

ir/be/ia32/ia32_optimize.c

@@ -977,7 +977,9 @@ exchange:
 	}
 	if (!breg && scale == 1) {
 		/* lea c(, %i, 2), %d -> lea c(%i, %i), %d */
+		assert(ireg != NULL);
 		set_irn_n(node, n_ia32_Lea_base, idx);
+		attr->addr.variant   = X86_ADDR_BASE_INDEX;
 		attr->addr.log_scale = 0;
 	}
 }

ir/be/ia32/x86_address_mode.h

@@ -16,7 +16,7 @@
 #include <stdint.h>
 #include "x86_imm.h"
 
-typedef enum {
+typedef enum x86_addr_variant_t {
 	X86_ADDR_INVALID,
 	X86_ADDR_REG,
 	X86_ADDR_JUST_IMM,