writing java method signatures

All tests pass, but it does not mean nothing is broken.

compiler/testData/compileJavaAgainstKotlin/MapOfKString.java

@@ -0,0 +1,13 @@
+import java.util.Map;
+import java.util.HashMap;
+import java.math.BigDecimal;
+
+class MapOfKString {
+    public static void gfgdgfg() {
+        jet.typeinfo.TypeInfo useless = null;
+        
+        Map<BigDecimal, String> map = new HashMap<BigDecimal, String>();
+        
+        Map<BigDecimal, String> r = namespace.fff(useless, map);
+    }
+}