Striking out deprecated functions in parameter info.

idea/src/org/jetbrains/jet/plugin/parameterInfo/JetFunctionParameterInfoHandler.java

@@ -41,6 +41,7 @@ import org.jetbrains.jet.lang.resolve.name.Name;
 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
 import org.jetbrains.jet.lang.types.JetType;
 import org.jetbrains.jet.lang.types.checker.JetTypeChecker;
+import org.jetbrains.jet.lang.types.lang.KotlinBuiltIns;
 import org.jetbrains.jet.lexer.JetTokens;
 import org.jetbrains.jet.plugin.codeInsight.TipsManager;
 import org.jetbrains.jet.plugin.project.AnalyzerFacadeWithCache;
@@ -220,7 +221,7 @@ public class JetFunctionParameterInfoHandler implements ParameterInfoHandlerWith
         int boldStartOffset = -1;
         int boldEndOffset = -1;
         boolean isGrey = false;
-        boolean isDeprecated = false; //todo: add deprecation check
+        boolean isDeprecated = KotlinBuiltIns.getInstance().isDeprecated(functionDescriptor);
 
         boolean[] usedIndexes = new boolean[valueParameters.size()];
         Arrays.fill(usedIndexes, false);

idea/testData/parameterInfo/functionParameterInfo/Deprecated.kt

@@ -0,0 +1,10 @@
+deprecated("") fun f(x: Int) = 2
+fun f(x: Int, y: Boolean) = 3
+
+fun d(x: Int) {
+    f(<caret>1)
+}
+/*
+Text: (<highlight>x: Int</highlight>), Disabled: false, Strikeout: true, Green: true
+Text: (<highlight>x: Int</highlight>, y: Boolean), Disabled: false, Strikeout: false, Green: false
+*/

idea/tests/org/jetbrains/jet/plugin/parameterInfo/JetFunctionParameterInfoTest.java

@@ -79,6 +79,10 @@ public class JetFunctionParameterInfoTest extends LightCodeInsightFixtureTestCas
         doTest();
     }
     
+    public void testDeprecated() {
+        doTest();
+    }
+
     @Override
     protected void setUp() throws Exception {
         super.setUp();