IG: fix inspection option

plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/numeric/ImplicitNumericConversionInspection.java

@@ -294,7 +294,7 @@ public class ImplicitNumericConversionInspection extends BaseInspection {
       if (expressionType.equals(expectedType)) {
         return;
       }
-      if (ignoreWideningConversions && TypeUtils.isNarrowingConversion(expressionType, expectedType)) {
+      if (ignoreWideningConversions && !TypeUtils.isNarrowingConversion(expressionType, expectedType)) {
         return;
       }
       if (ignoreCharConversions && PsiType.CHAR.equals(expectedType)) {

plugins/InspectionGadgets/test/com/siyeh/igtest/numeric/implicit_numeric_conversion/IgnoreCharConversion.java

@@ -0,0 +1,7 @@
+class IgnoreCharConversion {
+
+  void m(int i) {
+    final char a = 'a';
+    i = a;
+  }
+}

plugins/InspectionGadgets/test/com/siyeh/igtest/numeric/implicit_numeric_conversion/IgnoreWidening.java

@@ -0,0 +1,6 @@
+class IgnoreWidening {
+  void m(int i) {
+    long l = i;
+    byte b = 2;
+  }
+}

plugins/InspectionGadgets/testsrc/com/siyeh/ig/numeric/ImplicitNumericConversionInspectionTest.java

@@ -6,7 +6,22 @@ import org.jetbrains.annotations.Nullable;
 
 public class ImplicitNumericConversionInspectionTest extends LightInspectionTestCase {
 
-  public void testImplicitNumericConversion() throws Exception {
+  public void testImplicitNumericConversion() {
+    doTest();
+  }
+
+  public void testIgnoreCharConversion() {
+    final ImplicitNumericConversionInspection inspection = new ImplicitNumericConversionInspection();
+    inspection.ignoreCharConversions = true;
+    myFixture.enableInspections(inspection);
+    doTest();
+  }
+
+  public void testIgnoreWidening() {
+    final ImplicitNumericConversionInspection inspection = new ImplicitNumericConversionInspection();
+    inspection.ignoreWideningConversions = true;
+    inspection.ignoreConstantConversions = true;
+    myFixture.enableInspections(inspection);
     doTest();
   }