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cc: fndecls: use current fn node directly

--- a/sys/src/cmd/cc/cc.h

+++ b/sys/src/cmd/cc/cc.h

@@ -463,6 +463,7 @@

 EXTERN	int	thechar;

 EXTERN	char*	thestring;

 EXTERN	Type*	thisfn;

+EXTERN	Node*	thisfnnode;

 EXTERN	Type*	types[NTYPE];

 EXTERN	Type*	fntypes[NTYPE];

 EXTERN	Node*	initlist;

@@ -583,7 +584,7 @@

 void	edecl(int, Type*, Sym*);

 Type*	fnproto(Node*);

 Type*	fnproto1(Node*);

-void	fndecls(Node*, int);

+void	fndecls(int);

 void	markdcl(void);

 Type*	paramconv(Type*, int);

 void	pdecl(int, Type*, Sym*);

--- a/sys/src/cmd/cc/cc.y

+++ b/sys/src/cmd/cc/cc.y

@@ -82,7 +82,7 @@

 	{

 		lastdcl = T;

 		firstarg = S;

-		dodecl(xdecl, lastclass, lasttype, $2);

+		thisfnnode = dodecl(xdecl, lastclass, lasttype, $2);

 		if(lastdcl == T || lastdcl->etype != TFUNC) {

 			diag($2, "not a function");

 			lastdcl = types[TFUNC];

@@ -95,13 +95,13 @@

 	pdecl

 	{

 		argmark($2, 1);

-		fndecls($2, 0);

+		fndecls(0);

 	}

 	block

 	{

 		Node *n;

-		fndecls($2, 1);

+		fndecls(1);

 		n = revertdcl();

 		if(n)

 			$6 = new(OLIST, n, $6);

--- a/sys/src/cmd/cc/dcl.c

+++ b/sys/src/cmd/cc/dcl.c

@@ -732,7 +732,7 @@

 }

 void

-fndecls(Node *f, int pass)

+fndecls(int pass)

 {

 	static Sym *funcsym;

 	Node *n;

@@ -746,7 +746,7 @@

 		funcsym = dodecl(adecl, CLOCAL, n->type, n)->sym;

 	}else if(funcsym->aused){

 		n = new(OSTRING, Z, Z);

-		n->cstring = f->left->sym->name;

+		n->cstring = thisfnnode->sym->name;

 		n->type = copytyp(funcsym->type);

 		n->type->width = strlen(n->cstring)+1;

 		n->etype = TARRAY;