[test] Adjusting l-value resolves to unused variable test cases

Author: LucianoPAlmeida

test/Parse/consecutive_statements.swift

@@ -6,13 +6,13 @@ func statement_starts() {
 
   f(0)
   f (0)
-  f // expected-error{{expression resolves to an unused variable}}
+  f // expected-warning{{expression resolves to an unused variable}}
   (0) // expected-warning {{integer literal is unused}}
 
   var a = [1,2,3]
   a[0] = 1
   a [0] = 1
-  a // expected-error{{expression resolves to an unused variable}}
+  a // expected-warning{{expression resolves to an unused variable}}
   [0, 1, 2] // expected-warning {{expression of type '[Int]' is unused}}
 }
 

test/Parse/super.swift

@@ -34,15 +34,15 @@ class D : B {
   }
 
   func super_calls() {
-    super.foo        // expected-error {{expression resolves to an unused property}}
+    super.foo        // expected-warning {{expression resolves to an unused property}}
     super.foo.bar    // expected-error {{value of type 'Int' has no member 'bar'}}
     super.bar        // expected-error {{expression resolves to an unused function}}
     super.bar()
     // FIXME: should also say "'super.init' cannot be referenced outside of an initializer"
     super.init // expected-error{{no exact matches in reference to initializer}}
     super.init() // expected-error{{'super.init' cannot be called outside of an initializer}}
     super.init(0) // expected-error{{'super.init' cannot be called outside of an initializer}} // expected-error {{missing argument label 'x:' in call}}
-    super[0]        // expected-error {{expression resolves to an unused subscript}}
+    super[0]        // expected-warning {{expression resolves to an unused subscript}}
     super
       .bar()
   }

test/expr/expressions.swift

@@ -21,9 +21,9 @@ func1()
 _ = 4+7
 
 var bind_test1 : () -> () = func1
-var bind_test2 : Int = 4; func1 // expected-error {{expression resolves to an unused variable}}
+var bind_test2 : Int = 4; func1 // expected-warning {{expression resolves to an unused variable}}
 
-(func1, func2) // expected-error {{expression resolves to an unused variable}}
+(func1, func2) // expected-warning {{expression resolves to an unused variable}}
 
 func basictest() {
   // Simple integer variables.