inference: do not infer from type cast (IDEA-111002)

java/java-psi-api/src/com/intellij/psi/util/PsiTypesUtil.java

@@ -218,9 +218,6 @@ public class PsiTypesUtil {
         return PsiType.BOOLEAN.getBoxedType(parent);
       }
     }
-    else if (parent instanceof PsiTypeCastExpression) {
-      return ((PsiTypeCastExpression)parent).getType();
-    }
     else if (parent instanceof PsiReturnStatement) {
       final PsiLambdaExpression lambdaExpression = PsiTreeUtil.getParentOfType(parent, PsiLambdaExpression.class);
       if (lambdaExpression != null) {

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/NoInferenceFromTypeCast.java

@@ -0,0 +1,23 @@
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+
+
+interface A {}
+
+interface B extends A {}
+
+class Foo {
+    public <TA extends A> List<TA> getAs() {
+        return (List<TA>) getBs();
+    }
+
+    public <T extends B> List<T> getBs() {
+        return null;
+    }
+
+    void foo(Set<String> s) {}
+    {
+        foo(<error descr="Inconvertible types; cannot cast 'java.util.Set<java.lang.Object>' to 'java.util.Set<java.lang.String>'">(Set<String>)Collections.emptySet()</error>);
+    }
+}

java/java-tests/testSrc/com/intellij/codeInsight/daemon/GenericsHighlightingTest.java

@@ -302,6 +302,7 @@ public class GenericsHighlightingTest extends LightDaemonAnalyzerTestCase {
   public void testIDEA57391() { doTest5(false); }
   public void testIDEA110869() { doTest5(false); }
   public void testIDEA110947() { doTest5(false); }
+  public void testNoInferenceFromTypeCast() { doTest5(false); }
   
   public void testJavaUtilCollections_NoVerify() throws Exception {
     PsiClass collectionsClass = getJavaFacade().findClass("java.util.Collections", GlobalSearchScope.moduleWithLibrariesScope(getModule()));