[IMP] .gitignore: ignore tools/devtools build folder

Otherwise, it is annoying to have build files that should never be
committed anyway

.gitignore

@@ -22,6 +22,7 @@ node_modules
 
 # Extras temp file
 /tools/owl.js
+/tools/devtools/build
 
 release-notes.md
 

doc/reference/slots.md

@@ -46,8 +46,6 @@ Here is how the `Navbar` component could be defined, with the `t-slot` directive
 </div>
 ```
 
-Note that `t-slot` can only be used on a `<t>` element.
-
 ## Named slots
 
 Default slots are very useful, but sometimes, we may need more than one slot.

src/compiler/parser.ts

@@ -798,12 +798,6 @@ function parseTSlot(node: Element, ctx: ParsingContext): AST | null {
   if (!node.hasAttribute("t-slot")) {
     return null;
   }
-  if (node.tagName !== "t") {
-    throw new OwlError(
-      `Directive 't-slot' can only be used on <t> nodes (used on a <${node.tagName}>)`
-    );
-  }
-
   const name = node.getAttribute("t-slot")!;
   node.removeAttribute("t-slot");
   let attrs: Attrs | null = null;

tests/compiler/parser.test.ts

@@ -1686,12 +1686,6 @@ describe("qweb parser", () => {
     });
   });
 
-  test("t-slot on a div tag should throw", async () => {
-    expect(() => parse(`<div t-slot="name"/>`)).toThrowError(
-      "Directive 't-slot' can only be used on <t> nodes (used on a <div>)"
-    );
-  });
-
   // ---------------------------------------------------------------------------
   // t-debug
   // ---------------------------------------------------------------------------