transform_mjit_header.rb: add static to Init_*

as well, to make CI succeed with VM_CHECK_MODE > 1.

vm_insnhelper.c: drop unnecessary MJIT_HEADER ifdef. This is intended to
be ignored by having `static inline`. Removing that by macro would be
helpful for minimizing compilation time, but the impact is not so big
and having many MJIT_HEADER check would be bad for maintainability.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64682 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

tool/transform_mjit_header.rb

@@ -15,7 +15,7 @@ module MJITHeader
   #   VALUE __attribute__ ((foo)) bar(int baz)
   #   __attribute__ ((foo)) VALUE bar(int baz)
   FUNC_HEADER_REGEXP = /\A[^\[{(]*(\s*#{ATTR_REGEXP})*[^\[{(]*\((#{ATTR_REGEXP}|[^()])*\)(\s*#{ATTR_REGEXP})*\s*/
-  TARGET_NAME_REGEXP = /\A(rb|ruby|vm|insn|attr)_/
+  TARGET_NAME_REGEXP = /\A(rb|ruby|vm|insn|attr|Init)_/
 
   # Predefined macros for compilers which are already supported by MJIT.
   # We're going to support cl.exe too (WIP) but `cl.exe -E` can't produce macro.

vm_insnhelper.c

@@ -3930,6 +3930,6 @@ vm_canary_is_found_dead(enum ruby_vminsn_type i, VALUE c)
     rb_bug("dead canary found at %s: %s", insn, str);
 }
 
-#elif !defined(MJIT_HEADER)
+#else
 void Init_vm_stack_canary(void) { /* nothing to do */ }
 #endif