test: use canonical nested library imports

lib/encoding/base32/base32_test.ww

@@ -1,6 +1,6 @@
 package base32_test;
 
-import base32;
+import encoding.base32;
 
 fn putstr(s: str, into: []u8, off: i32) i32 = {
 	let i: i32 = 0;

lib/encoding/base64/base64_test.ww

@@ -8,7 +8,7 @@
 
 package base64_test;
 
-import base64;
+import encoding.base64;
 import bytes;
 import errors;
 import io;

lib/hash/adler32/adler32_test.ww

@@ -1,6 +1,6 @@
 package adler32_test;
 
-import adler32;
+import hash.adler32;
 
 fn putstr(s: str, into: []u8, off: i32) i32 = {
 	let i: i32 = 0;

lib/hash/crc16/crc16_test.ww

@@ -1,6 +1,6 @@
 package crc16_test;
 
-import crc16;
+import hash.crc16;
 
 fn putstr(s: str, into: []u8, off: i32) i32 = {
 	let i: i32 = 0;

lib/hash/crc32/crc32_test.ww

@@ -1,6 +1,6 @@
 package crc32_test;
 
-import crc32;
+import hash.crc32;
 
 fn putstr(s: str, into: []u8, off: i32) i32 = {
 	let i: i32 = 0;

lib/hash/crc64/crc64_test.ww

@@ -1,6 +1,6 @@
 package crc64_test;
 
-import crc64;
+import hash.crc64;
 
 fn putstr(s: str, into: []u8, off: i32) i32 = {
 	let i: i32 = 0;

lib/hash/siphash/siphash_test.ww

@@ -1,6 +1,6 @@
 package siphash_test;
 
-import siphash;
+import hash.siphash;
 
 fn putstr(s: str, into: []u8, off: i32) i32 = {
 	let i: i32 = 0;

lib/ww/syntax/ast_test.ww

@@ -7,7 +7,7 @@
 
 package syntax_test;
 
-import syntax;
+import ww.syntax;
 
 
 fn checknkname(k: nkind, want: str) void = {

lib/ww/syntax/sym_test.ww

@@ -9,7 +9,7 @@
 
 package syntax_test;
 
-import syntax;
+import ww.syntax;
 
 @test fn scope_define_lookup() void = {
 	let s: *scope = newscope(nil);

lib/ww/syntax/tok_test.ww

@@ -19,7 +19,7 @@
 package syntax_test;
 
 import os;
-import syntax;
+import ww.syntax;
 import temp;