create local from usage: check containing code block (IDEA-178443)

java/java-impl/src/com/intellij/codeInsight/daemon/impl/quickfix/CreateLocalFromUsageFix.java

@@ -56,12 +56,7 @@ public class CreateLocalFromUsageFix extends CreateVarFromUsageFix {
   protected boolean isAvailableImpl(int offset) {
     if (!super.isAvailableImpl(offset)) return false;
     if(myReferenceExpression.isQualified()) return false;
-    PsiElement scope = PsiTreeUtil.getParentOfType(myReferenceExpression, PsiModifierListOwner.class);
-    if (scope instanceof PsiAnonymousClass) {
-      scope = PsiTreeUtil.getParentOfType(scope, PsiModifierListOwner.class, true);
-    }
-    return scope instanceof PsiMethod || scope instanceof PsiClassInitializer ||
-           scope instanceof PsiLocalVariable;
+    return PsiTreeUtil.getParentOfType(myReferenceExpression, PsiCodeBlock.class) != null;
   }
 
   @Override

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createLocalFromUsage/afterInsideLambdaField.java

@@ -0,0 +1,6 @@
+// "Create local variable 'x'" "true"
+class other {
+  Runnable field = () -> {
+      Object x;
+      x};
+}

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/createLocalFromUsage/beforeInsideLambdaField.java

@@ -0,0 +1,4 @@
+// "Create local variable 'x'" "true"
+class other {
+  Runnable field = () -> {<caret>x};
+}