Fix #KT-12047 (Kotlin Lint: "Missing @JavascriptInterface on methods" does not report anything)

(cherry picked from commit 61e8e01)
(cherry picked from commit dbc54e2)

plugins/lint/lint-checks/src/com/android/tools/klint/checks/JavaScriptInterfaceDetector.java

@@ -96,7 +96,7 @@ public class JavaScriptInterfaceDetector extends Detector implements UastScanner
         }
 
         UExpression first = node.getValueArguments().get(0);
-        UElement resolved = node.resolve(context);
+        UElement resolved = UastUtils.resolveIfCan(first, context);
         if (resolved instanceof UVariable) {
             // We're passing in a variable to the addJavaScriptInterface method;
             // the variable may be of a more generic type than the actual

plugins/uast-kotlin/src/org/jetbrains/kotlin/uast/expressions/KotlinUObjectLiteralExpression.kt

@@ -16,9 +16,15 @@
 
 package org.jetbrains.kotlin.uast
 
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
+import org.jetbrains.kotlin.idea.caches.resolve.analyze
 import org.jetbrains.kotlin.psi.KtObjectLiteralExpression
+import org.jetbrains.kotlin.resolve.BindingContext
+import org.jetbrains.kotlin.resolve.descriptorUtil.getSuperClassOrAny
+import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 import org.jetbrains.uast.UElement
 import org.jetbrains.uast.UObjectLiteralExpression
+import org.jetbrains.uast.UType
 import org.jetbrains.uast.psi.PsiElementBacked
 
 class KotlinUObjectLiteralExpression(
@@ -26,4 +32,10 @@ class KotlinUObjectLiteralExpression(
         override val parent: UElement
 ) : UObjectLiteralExpression, PsiElementBacked, KotlinUElementWithType {
     override val declaration by lz { KotlinUClass(psi.objectDeclaration, this, true) }
+    override fun getExpressionType(): UType? {
+        val obj = psi.objectDeclaration
+        val bindingContext = obj.analyze(BodyResolveMode.PARTIAL)
+        val descriptor = bindingContext[BindingContext.DECLARATION_TO_DESCRIPTOR, obj] as? ClassDescriptor ?: return null
+        return KotlinConverter.convert(descriptor.getSuperClassOrAny().defaultType, psi.project, null)
+    }
 }

plugins/uast-kotlin/testData/lint/javaScriptInterface.kt

@@ -12,6 +12,10 @@ class JavaScriptTestK {
         webview.addJavascriptInterface(InheritsFromAnnotated(), "myobj")
         webview.addJavascriptInterface(NonAnnotatedObject(), "myobj")
 
+        webview.addJavascriptInterface(null, "nothing")
+        webview.addJavascriptInterface(object : Any() { @JavascriptInterface fun method() {} }, "nothing")
+        webview.addJavascriptInterface(JavascriptFace(), "nothing")
+
         var o: Any = NonAnnotatedObject()
         webview.addJavascriptInterface(o, "myobj")
         o = InheritsFromAnnotated()
@@ -56,3 +60,7 @@ class JavaScriptTestK {
     }
 
 }
+
+class JavascriptFace {
+    fun method() {}
+}