lambda: proceed c-like arrays declarations in parameters for lambda with excplicit type declarations (IDEA-152690)

java/java-psi-impl/src/com/intellij/psi/impl/source/tree/java/PsiLambdaExpressionImpl.java

@@ -214,7 +214,7 @@ public class PsiLambdaExpressionImpl extends ExpressionPsiElement implements Psi
         PsiParameter parameter = lambdaParameters[lambdaParamIdx];
         final PsiTypeElement typeElement = parameter.getTypeElement();
         if (typeElement != null) {
-          final PsiType lambdaFormalType = toArray(typeElement.getType());
+          final PsiType lambdaFormalType = toArray(parameter.getType());
           final PsiType methodParameterType = toArray(parameterTypes[lambdaParamIdx]);
           if (!lambdaFormalType.equals(methodParameterType)) {
             return false;

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/CLikeArrayDeclarationInLambdaWithExplicitTypes.java

@@ -0,0 +1,10 @@
+
+interface X {
+  void foo(int[] x);
+}
+
+class C {
+  static void main(String[] args){
+    X a = (int x[]) -> { };
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/lambda/NewLambdaHighlightingTest.java

@@ -276,6 +276,10 @@ public class NewLambdaHighlightingTest extends LightDaemonAnalyzerTestCase {
     doTest();
   }
 
+  public void testCLikeArrayDeclarationInLambdaWithExplicitTypes() throws Exception {
+    doTest();
+  }
+
   private void doTest() {
     doTest(false);
   }