Go to Implementation: Support suspend functions

idea/testData/navigation/implementations/multiModule/suspendFunImpl/common/common.kt

@@ -0,0 +1,8 @@
+package test
+
+interface I {
+    suspend fun <caret>foo(s: String)
+}
+
+// REF: [js] (in test.C).foo(String)
+// REF: [jvm] (in test.C).foo(String)

idea/testData/navigation/implementations/multiModule/suspendFunImpl/js/js.kt

@@ -0,0 +1,5 @@
+package test
+
+class C : I {
+    override suspend fun foo(s: String) { }
+}

idea/testData/navigation/implementations/multiModule/suspendFunImpl/jvm/jvm.kt

@@ -0,0 +1,5 @@
+package test
+
+class C : I {
+    override suspend fun foo(s: String) { }
+}