[java-inspections] IDEA-341640 Mark main(String[] args) parameter as unused with implicit classes

- return back support `premain`

GitOrigin-RevId: 71ed562fa9e0f514852cb3aff0e993452371aa44

java/java-psi-impl/src/com/intellij/psi/impl/PsiClassImplUtil.java

@@ -317,7 +317,7 @@ public final class PsiClassImplUtil {
       return true;
     }
     String name = method.getName();
-    if ("premain".equals(name) || "agentmain".equals(name)) return false;
+    if (!("main".equals(name) || "premain".equals(name) || "agentmain".equals(name))) return false;
     if (!PsiTypes.voidType().equals(method.getReturnType())) return false;
 
     PsiElementFactory factory = JavaPsiFacade.getElementFactory(method.getProject());

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/removeUnusedParameter/beforePreMain.java

@@ -0,0 +1,6 @@
+// "Safe delete 'args'" "false"
+
+public class Main{
+  public static void premain(String ar<caret>gs, java.lang.instrument.Instrumentation i) {
+  }
+}