[IMP] qweb: log invalid code generated by template

src/qweb_core.ts

@@ -296,11 +296,14 @@ export class QWeb {
         ctx.code.join("\n")
       ) as CompiledTemplate;
     } catch (e) {
+      const templateName = ctx.templateName.replace(/`/g, "'");
+      console.groupCollapsed(`Invalid Code generated by ${templateName}`);
+      console.warn(ctx.code.join("\n"));
+      console.groupEnd();
       throw new Error(
-        `Invalid generated code while compiling template '${ctx.templateName.replace(
-          /`/g,
-          "'"
-        )}': ${e.message}`
+        `Invalid generated code while compiling template '${templateName}': ${
+          e.message
+        }`
       );
     }
     if (isDebug) {