pragmas are always added to pragmas map as lowercased

Author: nojvek

src/compiler/checker.ts

@@ -23517,7 +23517,7 @@ namespace ts {
             // if jsxFactory compiler option is provided, ensure jsxFragmentFactory compiler option or @jsxFrag pragma is provided too
             const nodeSourceFile = getSourceFileOfNode(node);
             if (compilerOptions.jsx === JsxEmit.React && (compilerOptions.jsxFactory || nodeSourceFile.pragmas.has("jsx"))
-                && !compilerOptions.jsxFragmentFactory && !nodeSourceFile.pragmas.has("jsxFrag")) {
+                && !compilerOptions.jsxFragmentFactory && !nodeSourceFile.pragmas.has("jsxfrag")) {
                 error(node, compilerOptions.jsxFactory
                     ? Diagnostics.The_jsxFragmentFactory_compiler_option_must_be_provided_to_use_JSX_fragments_with_the_jsxFactory_compiler_option
                     : Diagnostics.An_jsxFrag_pragma_is_required_when_using_an_jsx_pragma_with_JSX_fragments);
@@ -36473,7 +36473,7 @@ namespace ts {
                     if (file.localJsxFragmentFactory) {
                         return file.localJsxFragmentFactory;
                     }
-                    const jsxFragPragmas = file.pragmas.get("jsxFrag");
+                    const jsxFragPragmas = file.pragmas.get("jsxfrag");
                     const jsxFragPragma = Array.isArray(jsxFragPragmas) ? jsxFragPragmas[0] : jsxFragPragmas;
                     if (jsxFragPragma) {
                         file.localJsxFragmentFactory = parseIsolatedEntityName(jsxFragPragma.arguments.factory, languageVersion);

src/compiler/parser.ts

@@ -8509,7 +8509,9 @@ namespace ts {
                     });
                     break;
                 }
-                case "jsx": return; // Accessed directly
+                case "jsx":
+                case "jsxfrag":
+                    return; // Accessed directly
                 default: Debug.fail("Unhandled pragma kind"); // Can this be made into an assertNever in the future?
             }
         });

src/compiler/types.ts

@@ -6684,7 +6684,7 @@ namespace ts {
             args: [{ name: "factory" }],
             kind: PragmaKindFlags.MultiLine
         },
-        "jsxFrag": {
+        "jsxfrag": {
             args: [{ name: "factory" }],
             kind: PragmaKindFlags.MultiLine
         },