suppress single unused parameter

java/java-impl/src/com/intellij/codeInspection/unusedParameters/UnusedParametersInspection.java

@@ -191,7 +191,7 @@ public class UnusedParametersInspection extends GlobalJavaBatchInspectionTool {
     clearUsedParameters(refMethod, result, checkDeep);
 
     for (RefParameter parameter : result) {
-      if (parameter != null) {
+      if (parameter != null && !((RefElementImpl)parameter).isSuppressed(UnusedSymbolLocalInspectionBase.UNUSED_PARAMETERS_SHORT_NAME)) {
         res.add(parameter);
       }
     }

java/java-tests/testData/inspection/unusedMethodParameter/suppressedParameter/expected.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<problems/>

java/java-tests/testData/inspection/unusedMethodParameter/suppressedParameter/src/Test.java

@@ -0,0 +1,5 @@
+public class Test {
+  public void foo(@SuppressWarnings("UnusedParameters") boolean b) {
+
+  }
+}

java/java-tests/testSrc/com/intellij/codeInspection/UnusedMethodParameterTest.java

@@ -38,6 +38,10 @@ public class UnusedMethodParameterTest extends InspectionTestCase {
     doTest();
   }
 
+  public void testSuppressedParameter() throws Exception {
+    doTest();
+  }
+
   public void testEntryPointUnusedParameter() throws Exception {
     doTest("unusedMethodParameter/" + getTestName(true), myTool, true, true);
   }