selfhost: drop snake_case locals in dyn/dynout/obj + w6a + cgen + ww driver

selfhost/cmd/wcc/cgen.ww

@@ -115,7 +115,7 @@ type fieldinfo = struct {
 type structinfo = struct {
 	sname:    str,
 	fields:   *fieldinfo,
-	tot_size: i32,
+	totsize: i32,
 	sinext:   *structinfo,
 };
 
@@ -150,9 +150,9 @@ type cgen = struct {
 	a:        *arena,
 	locals:   *local,
 	frame:    i32,
-	last_was_return: i32,
+	lastwasreturn: i32,
 	labelseq: i32,
-	strlit_seq: i32,
+	strlitseq: i32,
 	strlits: *strlit,
 	ffis:    *ffi,
 	defs:    *defent,
@@ -160,25 +160,25 @@ type cgen = struct {
 	aliases: *aliasent,
 	structs: *structinfo,
 	mods:    *modent,	// non-exported decls → originating module
-	fn_name:  str,
-	fn_ret:   *node,	// declared return type of current fn (or nil)
-	loop_top: i32,
-	loop_end_buf:  *str,	// stack of end labels for break
-	loop_cont_buf: *str,	// stack of cont labels for continue
+	fnname:  str,
+	fnret:   *node,	// declared return type of current fn (or nil)
+	looptop: i32,
+	loopendbuf:  *str,	// stack of end labels for break
+	loopcontbuf: *str,	// stack of cont labels for continue
 };
 
 fn cgeninit(c: *cgen, a: *arena) void = {
 	c.a = a;
 	c.locals = nil;
 	c.frame = 0;
-	c.last_was_return = 0;
+	c.lastwasreturn = 0;
 	c.labelseq = 0;
 	// Note: strlit_seq, strlits, ffis are *not* reset here; they
 	// persist across cgfn calls within one file. cgfile resets them
 	// at the start of each compilation unit.
-	c.loop_top = 0;
-	c.loop_end_buf  = amalloc(a, (LOOP_MAX: u64) * 16u64): *str;
-	c.loop_cont_buf = amalloc(a, (LOOP_MAX: u64) * 16u64): *str;
+	c.looptop = 0;
+	c.loopendbuf  = amalloc(a, (LOOP_MAX: u64) * 16u64): *str;
+	c.loopcontbuf = amalloc(a, (LOOP_MAX: u64) * 16u64): *str;
 };
 
 // localalloc — append a slot for `name` without dedup. Used for
@@ -310,7 +310,7 @@ fn emitoff(v: i64) void = {
 fn mklabel(c: *cgen, base: str) str = {
 	let buf: [128]u8;
 	let i: i32 = 0;
-	let fname: str = c.fn_name;
+	let fname: str = c.fnname;
 	let j: i32 = 0;
 	for (j < fname.len) {
 		buf[i] = fname[j];
@@ -362,8 +362,8 @@ fn internstrlit(c: *cgen, bytes: str) str = {
 	// New label "_S_<seq>".
 	let buf: [32]u8;
 	buf[0] = 95u8; buf[1] = 83u8; buf[2] = 95u8;	// "_S_"
-	let n: i32 = strconv.i64toa(buf[3:32], c.strlit_seq: i64);
-	c.strlit_seq += 1;
+	let n: i32 = strconv.i64toa(buf[3:32], c.strlitseq: i64);
+	c.strlitseq += 1;
 	let total: i32 = 3 + n;
 	let p: *u8 = amalloc(c.a, (total: u64) + 1u64): *u8;
 	let i: i32 = 0;