Make COROUTINE_REGISTERS compile-time only not to be a global symbol

coroutine/amd64/Context.h

@@ -16,7 +16,7 @@ extern "C" {
 
 #define COROUTINE __attribute__((noreturn)) void
 
-const size_t COROUTINE_REGISTERS = 6;
+enum {COROUTINE_REGISTERS = 6};
 
 typedef struct
 {

coroutine/arm32/Context.h

@@ -16,7 +16,7 @@ extern "C" {
 
 #define COROUTINE __attribute__((noreturn)) void
 
-const size_t COROUTINE_REGISTERS = 9;
+enum {COROUTINE_REGISTERS = 9};
 
 typedef struct
 {

coroutine/arm64/Context.h

@@ -16,7 +16,7 @@ extern "C" {
 
 #define COROUTINE __attribute__((noreturn)) void
 
-const size_t COROUTINE_REGISTERS = 0xb0 / 8;
+enum {COROUTINE_REGISTERS = 0xb0 / 8};
 
 typedef struct
 {

coroutine/ppc64le/Context.h

@@ -9,9 +9,11 @@ extern "C" {
 
 #define COROUTINE __attribute__((noreturn)) void
 
-const size_t COROUTINE_REGISTERS =
+enum {
+  COROUTINE_REGISTERS =
   19  /* 18 general purpose registers (r14-r31) and 1 return address */
-  + 4;  /* space for fiber_entry() to store the link register */
+  + 4  /* space for fiber_entry() to store the link register */
+};
 
 typedef struct
 {

coroutine/win32/Context.h

@@ -17,7 +17,7 @@ extern "C" {
 #define COROUTINE __declspec(noreturn) void __fastcall
 
 /* This doesn't include thread information block */
-const size_t COROUTINE_REGISTERS = 4;
+enum {COROUTINE_REGISTERS = 4};
 
 typedef struct
 {

coroutine/win64/Context.h

@@ -16,7 +16,7 @@ extern "C" {
 
 #define COROUTINE __declspec(noreturn) void
 
-const size_t COROUTINE_REGISTERS = 8;
+enum {COROUTINE_REGISTERS = 8};
 const size_t COROUTINE_XMM_REGISTERS = 1+10*2;
 
 typedef struct

coroutine/x86/Context.h

@@ -16,7 +16,7 @@ extern "C" {
 
 #define COROUTINE __attribute__((noreturn, fastcall)) void
 
-const size_t COROUTINE_REGISTERS = 4;
+enum {COROUTINE_REGISTERS = 4};
 
 typedef struct
 {