[IMP] qweb: compiler: support t-key on node and component without t-foreach

tests/components/__snapshots__/t_foreach.test.ts.snap

@@ -281,6 +281,43 @@ exports[`list of components sub components with some state rendered in a loop 2`
 }"
 `;
 
+exports[`list of components switch component position 1`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component } = bdom;
+  let { withDefault, getTemplate, prepareList, withKey, zero, call, callSlot, capture, isBoundary, shallowEqual, setContextValue, toNumber } = helpers;
+  
+  let block1 = createBlock(\`<div><block-text-0/></div>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    let d1 = ctx['props'].key;
+    return block1([d1]);
+  }
+}"
+`;
+
+exports[`list of components switch component position 2`] = `
+"function anonymous(bdom, helpers
+) {
+  let { text, createBlock, list, multi, html, toggler, component } = bdom;
+  let { withDefault, getTemplate, prepareList, withKey, zero, call, callSlot, capture, isBoundary, shallowEqual, setContextValue, toNumber } = helpers;
+  
+  let block1 = createBlock(\`<span><block-child-0/></span>\`);
+  
+  return function template(ctx, node, key = \\"\\") {
+    ctx = Object.create(ctx);
+    const [k_block2, v_block2, l_block2, c_block2] = prepareList(ctx['clist']);
+    for (let i1 = 0; i1 < l_block2; i1++) {
+      ctx[\`c\`] = v_block2[i1];
+      let key1 = ctx['c'];
+      c_block2[i1] = withKey(component(\`Child\`, {key: ctx['c']}, key + \`__1__\${key1}\`, node, ctx), key1);
+    }
+    let b2 = list(c_block2);
+    return block1([], [b2]);
+  }
+}"
+`;
+
 exports[`list of components t-foreach with t-component, and update 1`] = `
 "function anonymous(bdom, helpers
 ) {