Fix most unchecked/deprecation javac warnings in compiler modules

js/js.translator/src/org/jetbrains/kotlin/js/sourceMap/SourceMap3Builder.java

@@ -70,6 +70,7 @@ public class SourceMap3Builder implements SourceMapBuilder {
 
     @Override
     public String build() {
+        @SuppressWarnings("unchecked")
         JsonObject json = new JsonObject();
         json.getProperties().put("version", new JsonNumber(3));
         json.getProperties().put("file", new JsonString(generatedFile.getName()));

js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/BindingUtils.java

@@ -49,14 +49,15 @@ public final class BindingUtils {
     private BindingUtils() {
     }
 
+    @SuppressWarnings("unchecked")
     @NotNull
-    static private <E extends PsiElement, D extends DeclarationDescriptor>
-    D getDescriptorForExpression(@NotNull BindingContext context, @NotNull E expression, Class<D> descriptorClass) {
+    private static <E extends PsiElement, D extends DeclarationDescriptor> D getDescriptorForExpression(
+            @NotNull BindingContext context, @NotNull E expression, Class<D> descriptorClass
+    ) {
         DeclarationDescriptor descriptor = context.get(BindingContext.DECLARATION_TO_DESCRIPTOR, expression);
         assert descriptor != null;
         assert descriptorClass.isInstance(descriptor)
                 : message(expression, expression.toString() + " expected to have of type" + descriptorClass.toString());
-        //noinspection unchecked
         return (D) descriptor;
     }