Fix shift UB in constants

We were shifting out the top bit of a signed integer.

Author: nikic

Zend/zend_alloc.c

@@ -591,7 +591,7 @@ static zend_always_inline void zend_mm_bitset_reset_range(zend_mm_bitset *bitset
 
 if (pos != end) {
 /* reset bits from "bit" to ZEND_MM_BITSET_LEN-1 */
-tmp = ~((Z_L(1) << bit) - 1);
+tmp = ~((Z_UL(1) << bit) - 1);
 bitset[pos++] &= ~tmp;
 while (pos != end) {
 /* set all bits */

Zend/zend_compile.h

@@ -516,7 +516,7 @@ struct _zend_execute_data {
 #define ZEND_CALL_FAKE_CLOSURE (1 << 23)
 #define ZEND_CALL_GENERATOR (1 << 24)
 #define ZEND_CALL_DYNAMIC (1 << 25)
-#define ZEND_CALL_SEND_ARG_BY_REF (1 << 31)
+#define ZEND_CALL_SEND_ARG_BY_REF (1u << 31)
 
 #define ZEND_CALL_NESTED_FUNCTION (ZEND_CALL_FUNCTION | ZEND_CALL_NESTED)
 #define ZEND_CALL_NESTED_CODE (ZEND_CALL_CODE | ZEND_CALL_NESTED)

Zend/zend_gc.c

@@ -78,13 +78,13 @@
 #endif
 
 /* GC_INFO layout */
-#define GC_ADDRESS 0x0fffff
-#define GC_COLOR 0x300000
+#define GC_ADDRESS 0x0fffffu
+#define GC_COLOR 0x300000u
 
-#define GC_BLACK 0x000000 /* must be zero */
-#define GC_WHITE 0x100000
-#define GC_GREY 0x200000
-#define GC_PURPLE 0x300000
+#define GC_BLACK 0x000000u /* must be zero */
+#define GC_WHITE 0x100000u
+#define GC_GREY 0x200000u
+#define GC_PURPLE 0x300000u
 
 /* GC_INFO access */
 #define GC_REF_ADDRESS(ref) \