[groovy] use tree walk-up to find enclosing member is @CS check (IDEA-206662)

The bug appeared because anonymous classes don't have containing class.

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/psi/impl/GroovyPsiManager.java

@@ -10,6 +10,7 @@ import com.intellij.openapi.util.RecursionManager;
 import com.intellij.psi.*;
 import com.intellij.psi.impl.PsiManagerEx;
 import com.intellij.psi.search.GlobalSearchScope;
+import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.util.ConcurrencyUtil;
 import com.intellij.util.Function;
 import com.intellij.util.IncorrectOperationException;
@@ -81,19 +82,14 @@ public class GroovyPsiManager {
   }
 
   public boolean isCompileStatic(@NotNull PsiMember member) {
-    Boolean aBoolean = myCompileStatic.get(member);
-    if (aBoolean == null) {
-      aBoolean = ConcurrencyUtil.cacheOrGet(myCompileStatic, member, isCompileStaticInner(member));
-    }
-    return aBoolean;
+    return myCompileStatic.computeIfAbsent(member, this::isCompileStaticInner);
   }
 
   private boolean isCompileStaticInner(@NotNull PsiMember member) {
     PsiAnnotation annotation = getCompileStaticAnnotation(member);
     if (annotation != null) return checkForPass(annotation);
-    PsiClass aClass = member.getContainingClass();
-    if (aClass != null) return isCompileStatic(aClass);
-    return false;
+    PsiMember enclosingMember = PsiTreeUtil.getParentOfType(member, PsiMember.class, true);
+    return enclosingMember != null && isCompileStatic(enclosingMember);
   }
 
   @Nullable

plugins/groovy/test/org/jetbrains/plugins/groovy/lang/highlighting/GroovyHighlightingTest.groovy

@@ -577,6 +577,11 @@ print <warning descr="Cannot resolve symbol 'abc'">abc</warning>
 @CompileStatic
 def bar() {
 print <error descr="Cannot resolve symbol 'abc'">abc</error>
+  new Object() {
+    def baz() {
+      print(<error descr="Cannot resolve symbol 'unknown'">unknown</error>)
+    }
+  }
 }
 }
 ''', true, false, false, GrUnresolvedAccessInspection)