Navigation: Fix navigation to library sources for Kotlin constructors

idea/idea-analysis/src/org/jetbrains/kotlin/idea/decompiler/navigation/JetSourceNavigationHelper.java

@@ -340,7 +340,7 @@ public class JetSourceNavigationHelper {
     }
 
     @Nullable
-    public static JetNamedDeclaration getSourceFunction(@NotNull JetNamedFunction decompiledFunction) {
+    public static JetNamedDeclaration getSourceFunction(@NotNull JetFunction decompiledFunction) {
         return getSourcePropertyOrFunction(decompiledFunction);
     }
 
@@ -452,6 +452,16 @@ public class JetSourceNavigationHelper {
             if (sourceParameters.size() != parameters.size()) return null;
             return sourceParameters.get(index);
         }
+
+        @Override
+        public JetDeclaration visitPrimaryConstructor(@NotNull JetPrimaryConstructor constructor, Void data) {
+            return getSourceFunction(constructor);
+        }
+
+        @Override
+        public JetDeclaration visitSecondaryConstructor(@NotNull JetSecondaryConstructor constructor, Void data) {
+            return getSourceFunction(constructor);
+        }
     }
 
     private static class LibrarySourcesScope extends GlobalSearchScope {

idea/testData/decompiler/navigation/decompiled/ClassWithConstructor.kt

@@ -4,5 +4,7 @@
 package testData.libraries
 
 [[public final class ClassWithConstructor public constructor(a: kotlin.String, b: kotlin.Any) {
+    [public constructor(a: kotlin.String) { /* compiled code */ }]
+
     [internal final val a: kotlin.String /* compiled code */]
 }]]

idea/testData/decompiler/navigation/library/main.kt

@@ -61,7 +61,9 @@ public abstract class ClassWithAbstractAndOpenMembers {
     }
 }
 
-public class ClassWithConstructor(val a: String, b: Any)
+public class ClassWithConstructor(val a: String, b: Any) {
+    constructor(a: String): this(a, a)
+}
 
 public fun main(args : Array<String>) {
 }

idea/testData/decompiler/navigation/usercode/Constructor.kt

@@ -1,6 +1,8 @@
 import testData.libraries.*
 
 val x: ClassWithConstructor = ClassWithConstructor("abc", 239)
+val xx: ClassWithConstructor = ClassWithConstructor("abc")
 
 // main.kt
-//public class <1><2>ClassWithConstructor(val a: String, b: Any)
+//public class <1><3>ClassWithConstructor<2>(val a: String, b: Any) {
+//    <4>constructor(a: String): this(a, a)

idea/testData/decompiler/navigation/usercode/ExtensionProperty.kt

@@ -17,6 +17,6 @@ fun foo() {
 //    return this
 //}
 //
-//public class <2>Pair<A, B>(val first: A, val second: B)
+//public class Pair<A, B><2>(val first: A, val second: B)
 //
 //public val <T> Pair<T, T>.<3>exProp : String