Merge remote-tracking branch 'origin/master'

compiler/testData/diagnostics/tests/regressions/kt557.jet

@@ -0,0 +1,9 @@
+// KT-557 Wrong type inference near sure extension function
+
+fun Array<String>.length() : Int {
+    return 0;
+}
+
+fun test(array : Array<String?>?) {
+    array<!UNNECESSARY_SAFE_CALL!>?.<!>sure<Array<String?>>()<!UNSAFE_CALL!>.<!>length()
+}

compiler/testData/diagnostics/tests/regressions/kt750.jet

@@ -0,0 +1,9 @@
+// +JDK
+//KT-750 Type inference failed: Constraint violation
+fun main(args : Array<String>) {
+  var i : Int? = Integer.valueOf(100)
+  var s : Int? = Integer.valueOf(100)
+
+  val o = i .sure() + s.sure()
+  System.out?.println(o)
+}

compiler/testData/diagnostics/tests/regressions/kt762.jet

@@ -0,0 +1,4 @@
+//KT-762 Wrong highlighting in imports (No errors reported on unresolved imports)
+import <!UNRESOLVED_REFERENCE!>aaa<!> // must be an error
+
+fun main(args : Array<String>) {}