nullable safe calls supported (only for fields)

testData/ast/callChain/file/libraryFieldCall.jav

@@ -0,0 +1,9 @@
+class Library {
+  final static java.io.PrintStream ourOut;
+}
+
+class User {
+  void main() {
+    Library.ourOut.print();
+  }
+}

testData/ast/callChain/file/libraryFieldCall.kt

@@ -0,0 +1,12 @@
+namespace {
+open class Library {
+class object {
+val ourOut : PrintStream?
+}
+}
+open class User {
+fun main() : Unit {
+Library.ourOut?.print()
+}
+}
+}

testData/ast/callChain/statement/sout.jav

@@ -0,0 +1 @@
+System.out.println("Hello, world");

testData/ast/callChain/statement/sout.kt

@@ -0,0 +1 @@
+System.`out`?.println("Hello, world")

testData/ast/enum/class/runnableImplementation.kt

@@ -5,6 +5,6 @@ RED
 YELLOW
 BLUE
 override public fun run() : Unit {
-System.out.println(("name()=" + name() + ", toString()=" + toString()))
+System.`out`?.println(("name()=" + name() + ", toString()=" + toString()))
 }
 }

testData/ast/labelStatement/statement/complicatedExampleFromJavaTutorial.kt

@@ -21,7 +21,7 @@ break@test
 }
 }
 }
-System.out.println((if (foundIt)
+System.`out`?.println((if (foundIt)
 "Found it"
 else
 "Didn't find it"))

testData/ast/parenthesizedExpression/expression/parenthesized2.jav

@@ -1 +1 @@
-(o.toString() + "abc")
+(str.toString() + "abc")

testData/ast/parenthesizedExpression/expression/parenthesized2.kt

@@ -1 +1 @@
-((o.toString() + "abc"))
+((str.toString() + "abc"))