[lua] Fixups from #4066

docs/pages/release_notes.md

@@ -14,9 +14,10 @@ This is a {{ site.pmd.release_type }} release.
 
 ### New and noteworthy
 
-#### Luau Support
+#### Lua now supports additionally Luau
 
-This release of PMD brings support for [Luau](https://github.com/Roblox/luau), a gradually typed language derived from Lua.
+This release of PMD adds support for [Luau](https://github.com/Roblox/luau), a gradually typed language derived
+from Lua. This means, that the Lua language in PMD can now parse both Lua and Luau.
 
 ### Fixed Issues
 * [#4116](https://github.com/pmd/pmd/pull/4116): \[core] Missing --file arg in TreeExport CLI example

pmd-lua/src/main/antlr4/net/sourceforge/pmd/lang/lua/antlr4/Lua.g4

@@ -108,6 +108,7 @@ label
     ;
 
 laststat
+    // "continue" is a luau addition and actually not a reserved keyword
     : 'return' explist? | 'break' | 'continue'
     ;
 

pmd-lua/src/test/java/net/sourceforge/pmd/cpd/LuaTokenizerTest.java

@@ -41,7 +41,7 @@ public class LuaTokenizerTest extends CpdTextComparisonTest {
     }
 
     @Test
-    public void testRegression() {
+    public void testLuauTypes() {
         doTest("luauTypes");
     }