gogensig:fix unexpect receiver duplicate init

[luoliwoshang]

fix #67

• 对于处理为receiver的函数，阻止不预期的对receiver的重复获取
• 对于重复的隐式前向声明，进行复用，而不是重新创建导致重复声明

对于issue中的libcares 的redefine问题已经可以解决

{
	"name": "libcares",
	"cflags": "$(pkg-config --cflags libcares)",
	"libs": "$(pkg-config --libs libcares)",
	"include": [
		"ares.h",
		"ares_dns_record.h"
	],
	"deps": null,
	"trimPrefixes": [],
	"cplusplus": false
}

仅保留预期的 /c/unix/net 没有引用的错误

2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_set_u8 Fail: ares_dns_rr_set_u8 symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_set_u16}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_set_u16 Fail: ares_dns_rr_set_u16 symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_set_u32}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_set_u32 Fail: ares_dns_rr_set_u32 symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_set_bin}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_set_bin Fail: ares_dns_rr_set_bin symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_add_abin}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_add_abin Fail: ares_dns_rr_add_abin symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_del_abin}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_del_abin Fail: ares_dns_rr_del_abin symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_set_opt}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_set_opt Fail: ares_dns_rr_set_opt symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_del_opt_byid}
2024/12/25 19:18:06 NewFuncDecl ares_dns_rr_del_opt_byid Fail: ares_dns_rr_del_opt_byid symbol not found
2024/12/25 19:18:06 NewFuncDecl: &{ares_dns_rr_get_addr}
panic: no required module provides package github.com/goplus/llgo/c/unix/net; to add it:
        go get github.com/goplus/llgo/c/unix/net

复现

{
	"name": "libcares",
	"cflags": "$(pkg-config --cflags libcares)",
	"libs": "$(pkg-config --libs libcares)",
	"include": [
		"ares.h",
		"ares_dns_record.h"
	],
	"deps": null,
	"trimPrefixes": [],
	"cplusplus": false
}

ares.h

#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/types.h>
struct ares_in6_addr {
    union {
        unsigned char _S6_u8[16];
    } _S6_un;
};

struct ares_addr {
    int family;

    union {
        struct in_addr addr4;
        struct ares_in6_addr addr6;
    } addr;
};

#include "ares_dns_record.h"

ares_dns_record.h

char *ares_dns_addr_to_ptr(const struct ares_addr *addr);

llcppg.symb.json

[
  {
    "mangle": "ares_dns_addr_to_ptr",
    "c++": "ares_dns_addr_to_ptr(const struct ares_addr *)",
    "go": "(*Struct aresAddr).AresDnsAddrToPtr"
  }
]

问题出现在将这个const struct ares_addr *addr 作为receiver初始化后，仍然将整个paramlist进行初始化了

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.48%. Comparing base (5771942) to head (fd8a0a3).
Report is 14 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #95   +/-   ##
=======================================
  Coverage   97.47%   97.48%           
=======================================
  Files          15       15           
  Lines        1819     1826    +7     
=======================================
+ Hits         1773     1780    +7     
  Misses         32       32           
  Partials       14       14           

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