accel/tcg: Reduce 'exec/tb-context.h' inclusion

Only 2 headers require "exec/tb-context.h". Instead of having
all files including "exec/exec-all.h" also including it, directly
include it where it is required:
- accel/tcg/cpu-exec.c
- accel/tcg/translate-all.c

For plugins/plugin.h, we were implicitly relying on
  exec/exec-all.h -> exec/tb-context.h -> qemu/qht.h
which is now included directly.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210524170453.3791436-2-f4bug@amsat.org>
[rth: Fix plugins/plugin.h compilation]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

accel/tcg/cpu-exec.c

@@ -31,6 +31,7 @@
 #include "qemu/rcu.h"
 #include "exec/tb-hash.h"
 #include "exec/tb-lookup.h"
+#include "exec/tb-context.h"
 #include "exec/log.h"
 #include "qemu/main-loop.h"
 #if defined(TARGET_I386) && !defined(CONFIG_USER_ONLY)

accel/tcg/translate-all.c

@@ -48,6 +48,7 @@
 
 #include "exec/cputlb.h"
 #include "exec/tb-hash.h"
+#include "exec/tb-context.h"
 #include "exec/translate-all.h"
 #include "qemu/bitmap.h"
 #include "qemu/error-report.h"

include/exec/exec-all.h

@@ -21,7 +21,6 @@
 #define EXEC_ALL_H
 
 #include "cpu.h"
-#include "exec/tb-context.h"
 #ifdef CONFIG_TCG
 #include "exec/cpu_ldst.h"
 #endif

include/tcg/tcg.h

@@ -27,7 +27,6 @@
 
 #include "cpu.h"
 #include "exec/memop.h"
-#include "exec/tb-context.h"
 #include "qemu/bitops.h"
 #include "qemu/plugin.h"
 #include "qemu/queue.h"

plugins/plugin.h

@@ -13,6 +13,7 @@
 #define _PLUGIN_INTERNAL_H_
 
 #include <gmodule.h>
+#include "qemu/qht.h"
 
 #define QEMU_PLUGIN_MIN_VERSION 0