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show line numbers in dtracy type errors

--- a/sys/src/cmd/dtracy/act.c

+++ b/sys/src/cmd/dtracy/act.c

@@ -192,7 +192,8 @@

 			goto again;

 		case 'x': case 'X': case 'o': case 'b': case 'd':

 			if(n >= narg) sysfatal("printf() too few arguments");

-			if(arg[n]->typ->type != TYPINT) sysfatal("print() %%%c with non-integer", *fmt);

+			if(arg[n]->typ->type != TYPINT)

+				sysfatal("%d: print() %%%c with non-integer", arg[n]->line, *fmt);

 			arg[n] = tracegen(arg[n], g, recoff);

 			n++;

 			fmtrune(&f, 'l');

@@ -201,7 +202,8 @@

 			break;

 		case 's':

 			if(n >= narg) sysfatal("printf() too few arguments");

-			if(arg[n]->typ->type != TYPSTRING) sysfatal("print() %%s with non-string");

+			if(arg[n]->typ->type != TYPSTRING)

+				sysfatal("%d: print() %%s with non-string", arg[n]->line);

 			arg[n] = tracegen(arg[n], g, recoff);

 			n++;

 			fmtrune(&f, *fmt);

--- a/sys/src/cmd/dtracy/dat.h

+++ b/sys/src/cmd/dtracy/dat.h

@@ -75,6 +75,7 @@

 	Symbol *sym;

 	char *str;

 	s64int num;

+	int line;

 	/* used by elidecasts() */

 	char databits;

--- a/sys/src/cmd/dtracy/lex.c

+++ b/sys/src/cmd/dtracy/lex.c

@@ -239,6 +239,7 @@

 	n = emalloc(sizeof(Node));

 	n->type = type;

+	n->line = lineno;

 	va_start(va, type);

 	switch(type){

 	case OBIN: